Home / 103,269.61-142,500.45-57,938.14

Finding the Fourth Proportional to 103,269.61, 142,500.45 and 57,938.14

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Solution

The fourth proportional to 103,269.61, 142,500.45 and 57,938.14 is: 79,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,269.61 : 142,500.45 = 57,938.14 : x
  2. Step 2: Convert to fraction form
    103,269.61/142,500.45 = 57,938.14/x
  3. Step 3: Cross multiply
    103,269.61x = 142,500.45 × 57,938.14
  4. Step 4: Simplify right side
    103,269.61x = 8,256,211,022.16
  5. Step 5: Solve for x
    x = 8,256,211,022.16/103,269.61
  6. Step 6: Final answer
    x = 79,948.12

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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.