Home / 118,829.60-178,284.12-38,871.22

Finding the Fourth Proportional to 118,829.60, 178,284.12 and 38,871.22

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Solution

The fourth proportional to 118,829.60, 178,284.12 and 38,871.22 is: 58,319.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,829.60 : 178,284.12 = 38,871.22 : x
  2. Step 2: Convert to fraction form
    118,829.60/178,284.12 = 38,871.22/x
  3. Step 3: Cross multiply
    118,829.60x = 178,284.12 × 38,871.22
  4. Step 4: Simplify right side
    118,829.60x = 6,930,120,805.32
  5. Step 5: Solve for x
    x = 6,930,120,805.32/118,829.60
  6. Step 6: Final answer
    x = 58,319.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.