Home / 138,730.28-191,377.23-84,267.95

Finding the Fourth Proportional to 138,730.28, 191,377.23 and 84,267.95

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Solution

The fourth proportional to 138,730.28, 191,377.23 and 84,267.95 is: 116,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,730.28 : 191,377.23 = 84,267.95 : x
  2. Step 2: Convert to fraction form
    138,730.28/191,377.23 = 84,267.95/x
  3. Step 3: Cross multiply
    138,730.28x = 191,377.23 × 84,267.95
  4. Step 4: Simplify right side
    138,730.28x = 16,126,966,848.78
  5. Step 5: Solve for x
    x = 16,126,966,848.78/138,730.28
  6. Step 6: Final answer
    x = 116,246.91

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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.