Home / 113,390,228.40-170,085,342.60-90,715,412.40

Finding the Fourth Proportional to 113,390,228.40, 170,085,342.60 and 90,715,412.40

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Solution

The fourth proportional to 113,390,228.40, 170,085,342.60 and 90,715,412.40 is: 136,073,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,390,228.40 : 170,085,342.60 = 90,715,412.40 : x
  2. Step 2: Convert to fraction form
    113,390,228.40/170,085,342.60 = 90,715,412.40/x
  3. Step 3: Cross multiply
    113,390,228.40x = 170,085,342.60 × 90,715,412.40
  4. Step 4: Simplify right side
    113,390,228.40x = 15,429,361,997,154,288
  5. Step 5: Solve for x
    x = 15,429,361,997,154,288/113,390,228.40
  6. Step 6: Final answer
    x = 136,073,118.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.