Home / 103,061.40-142,294.11-64,358.19

Finding the Fourth Proportional to 103,061.40, 142,294.11 and 64,358.19

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Solution

The fourth proportional to 103,061.40, 142,294.11 and 64,358.19 is: 88,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,061.40 : 142,294.11 = 64,358.19 : x
  2. Step 2: Convert to fraction form
    103,061.40/142,294.11 = 64,358.19/x
  3. Step 3: Cross multiply
    103,061.40x = 142,294.11 × 64,358.19
  4. Step 4: Simplify right side
    103,061.40x = 9,157,791,367.26
  5. Step 5: Solve for x
    x = 9,157,791,367.26/103,061.40
  6. Step 6: Final answer
    x = 88,857.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.