Home / 156,000.89-215,281.28-88,032.31

Finding the Fourth Proportional to 156,000.89, 215,281.28 and 88,032.31

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Solution

The fourth proportional to 156,000.89, 215,281.28 and 88,032.31 is: 121,484.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,000.89 : 215,281.28 = 88,032.31 : x
  2. Step 2: Convert to fraction form
    156,000.89/215,281.28 = 88,032.31/x
  3. Step 3: Cross multiply
    156,000.89x = 215,281.28 × 88,032.31
  4. Step 4: Simplify right side
    156,000.89x = 18,951,708,378.16
  5. Step 5: Solve for x
    x = 18,951,708,378.16/156,000.89
  6. Step 6: Final answer
    x = 121,484.62

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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.