Home / 156,459.18-234,708.45-76,499.82

Finding the Fourth Proportional to 156,459.18, 234,708.45 and 76,499.82

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Solution

The fourth proportional to 156,459.18, 234,708.45 and 76,499.82 is: 114,759.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,459.18 : 234,708.45 = 76,499.82 : x
  2. Step 2: Convert to fraction form
    156,459.18/234,708.45 = 76,499.82/x
  3. Step 3: Cross multiply
    156,459.18x = 234,708.45 × 76,499.82
  4. Step 4: Simplify right side
    156,459.18x = 17,955,154,177.48
  5. Step 5: Solve for x
    x = 17,955,154,177.48/156,459.18
  6. Step 6: Final answer
    x = 114,759.35

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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.