Home / 103,073.64-142,240.68-57,753.60

Finding the Fourth Proportional to 103,073.64, 142,240.68 and 57,753.60

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Solution

The fourth proportional to 103,073.64, 142,240.68 and 57,753.60 is: 79,699.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,073.64 : 142,240.68 = 57,753.60 : x
  2. Step 2: Convert to fraction form
    103,073.64/142,240.68 = 57,753.60/x
  3. Step 3: Cross multiply
    103,073.64x = 142,240.68 × 57,753.60
  4. Step 4: Simplify right side
    103,073.64x = 8,214,911,336.45
  5. Step 5: Solve for x
    x = 8,214,911,336.45/103,073.64
  6. Step 6: Final answer
    x = 79,699.44

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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.