Home / 156,778.28-235,117.74-51,572.78

Finding the Fourth Proportional to 156,778.28, 235,117.74 and 51,572.78

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Solution

The fourth proportional to 156,778.28, 235,117.74 and 51,572.78 is: 77,342.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,778.28 : 235,117.74 = 51,572.78 : x
  2. Step 2: Convert to fraction form
    156,778.28/235,117.74 = 51,572.78/x
  3. Step 3: Cross multiply
    156,778.28x = 235,117.74 × 51,572.78
  4. Step 4: Simplify right side
    156,778.28x = 12,125,675,479.12
  5. Step 5: Solve for x
    x = 12,125,675,479.12/156,778.28
  6. Step 6: Final answer
    x = 77,342.83

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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.