Home / 165,141.12-247,648.29-70,311.18

Finding the Fourth Proportional to 165,141.12, 247,648.29 and 70,311.18

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Solution

The fourth proportional to 165,141.12, 247,648.29 and 70,311.18 is: 105,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,141.12 : 247,648.29 = 70,311.18 : x
  2. Step 2: Convert to fraction form
    165,141.12/247,648.29 = 70,311.18/x
  3. Step 3: Cross multiply
    165,141.12x = 247,648.29 × 70,311.18
  4. Step 4: Simplify right side
    165,141.12x = 17,412,443,494.88
  5. Step 5: Solve for x
    x = 17,412,443,494.88/165,141.12
  6. Step 6: Final answer
    x = 105,439.78

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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.