Home / 136,023.24-187,658.31-78,652.02

Finding the Fourth Proportional to 136,023.24, 187,658.31 and 78,652.02

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Solution

The fourth proportional to 136,023.24, 187,658.31 and 78,652.02 is: 108,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,023.24 : 187,658.31 = 78,652.02 : x
  2. Step 2: Convert to fraction form
    136,023.24/187,658.31 = 78,652.02/x
  3. Step 3: Cross multiply
    136,023.24x = 187,658.31 × 78,652.02
  4. Step 4: Simplify right side
    136,023.24x = 14,759,705,151.29
  5. Step 5: Solve for x
    x = 14,759,705,151.29/136,023.24
  6. Step 6: Final answer
    x = 108,508.70

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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.