Home / 156,731.74-235,103.55-51,559.18

Finding the Fourth Proportional to 156,731.74, 235,103.55 and 51,559.18

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Solution

The fourth proportional to 156,731.74, 235,103.55 and 51,559.18 is: 77,340.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,731.74 : 235,103.55 = 51,559.18 : x
  2. Step 2: Convert to fraction form
    156,731.74/235,103.55 = 51,559.18/x
  3. Step 3: Cross multiply
    156,731.74x = 235,103.55 × 51,559.18
  4. Step 4: Simplify right side
    156,731.74x = 12,121,746,253.09
  5. Step 5: Solve for x
    x = 12,121,746,253.09/156,731.74
  6. Step 6: Final answer
    x = 77,340.72

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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.