Home / 156,743.60-235,115.40-112,784.90

Finding the Fourth Proportional to 156,743.60, 235,115.40 and 112,784.90

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Solution

The fourth proportional to 156,743.60, 235,115.40 and 112,784.90 is: 169,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,743.60 : 235,115.40 = 112,784.90 : x
  2. Step 2: Convert to fraction form
    156,743.60/235,115.40 = 112,784.90/x
  3. Step 3: Cross multiply
    156,743.60x = 235,115.40 × 112,784.90
  4. Step 4: Simplify right side
    156,743.60x = 26,517,466,877.46
  5. Step 5: Solve for x
    x = 26,517,466,877.46/156,743.60
  6. Step 6: Final answer
    x = 169,177.35

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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.