Home / 103,104.56-142,294.28-57,790.24

Finding the Fourth Proportional to 103,104.56, 142,294.28 and 57,790.24

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Solution

The fourth proportional to 103,104.56, 142,294.28 and 57,790.24 is: 79,756.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,104.56 : 142,294.28 = 57,790.24 : x
  2. Step 2: Convert to fraction form
    103,104.56/142,294.28 = 57,790.24/x
  3. Step 3: Cross multiply
    103,104.56x = 142,294.28 × 57,790.24
  4. Step 4: Simplify right side
    103,104.56x = 8,223,220,591.83
  5. Step 5: Solve for x
    x = 8,223,220,591.83/103,104.56
  6. Step 6: Final answer
    x = 79,756.13

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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.