Home / 156,641.60-234,646.35-72,284.55

Finding the Fourth Proportional to 156,641.60, 234,646.35 and 72,284.55

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Solution

The fourth proportional to 156,641.60, 234,646.35 and 72,284.55 is: 108,280.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,641.60 : 234,646.35 = 72,284.55 : x
  2. Step 2: Convert to fraction form
    156,641.60/234,646.35 = 72,284.55/x
  3. Step 3: Cross multiply
    156,641.60x = 234,646.35 × 72,284.55
  4. Step 4: Simplify right side
    156,641.60x = 16,961,306,394.39
  5. Step 5: Solve for x
    x = 16,961,306,394.39/156,641.60
  6. Step 6: Final answer
    x = 108,280.98

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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.