Home / 137,306.52-189,472.86-76,863.24

Finding the Fourth Proportional to 137,306.52, 189,472.86 and 76,863.24

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Solution

The fourth proportional to 137,306.52, 189,472.86 and 76,863.24 is: 106,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,306.52 : 189,472.86 = 76,863.24 : x
  2. Step 2: Convert to fraction form
    137,306.52/189,472.86 = 76,863.24/x
  3. Step 3: Cross multiply
    137,306.52x = 189,472.86 × 76,863.24
  4. Step 4: Simplify right side
    137,306.52x = 14,563,497,911.67
  5. Step 5: Solve for x
    x = 14,563,497,911.67/137,306.52
  6. Step 6: Final answer
    x = 106,065.60

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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.