Home / 113,390,231.40-170,085,347.10-90,715,415.40

Finding the Fourth Proportional to 113,390,231.40, 170,085,347.10 and 90,715,415.40

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Solution

The fourth proportional to 113,390,231.40, 170,085,347.10 and 90,715,415.40 is: 136,073,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,390,231.40 : 170,085,347.10 = 90,715,415.40 : x
  2. Step 2: Convert to fraction form
    113,390,231.40/170,085,347.10 = 90,715,415.40/x
  3. Step 3: Cross multiply
    113,390,231.40x = 170,085,347.10 × 90,715,415.40
  4. Step 4: Simplify right side
    113,390,231.40x = 15,429,362,915,629,686
  5. Step 5: Solve for x
    x = 15,429,362,915,629,686/113,390,231.40
  6. Step 6: Final answer
    x = 136,073,123.10

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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.