Home / 156,815.31-235,221.53-63,319.71

Finding the Fourth Proportional to 156,815.31, 235,221.53 and 63,319.71

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Solution

The fourth proportional to 156,815.31, 235,221.53 and 63,319.71 is: 94,978.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.31 : 235,221.53 = 63,319.71 : x
  2. Step 2: Convert to fraction form
    156,815.31/235,221.53 = 63,319.71/x
  3. Step 3: Cross multiply
    156,815.31x = 235,221.53 × 63,319.71
  4. Step 4: Simplify right side
    156,815.31x = 14,894,158,748.76
  5. Step 5: Solve for x
    x = 14,894,158,748.76/156,815.31
  6. Step 6: Final answer
    x = 94,978.98

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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.