Home / 103,059.90-142,231.68-57,737.16

Finding the Fourth Proportional to 103,059.90, 142,231.68 and 57,737.16

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Solution

The fourth proportional to 103,059.90, 142,231.68 and 57,737.16 is: 79,682.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,059.90 : 142,231.68 = 57,737.16 : x
  2. Step 2: Convert to fraction form
    103,059.90/142,231.68 = 57,737.16/x
  3. Step 3: Cross multiply
    103,059.90x = 142,231.68 × 57,737.16
  4. Step 4: Simplify right side
    103,059.90x = 8,212,053,265.23
  5. Step 5: Solve for x
    x = 8,212,053,265.23/103,059.90
  6. Step 6: Final answer
    x = 79,682.33

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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.