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Finding the Fourth Proportional to 166,124.68, 229,281.78 and 99,061

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Solution

The fourth proportional to 166,124.68, 229,281.78 and 99,061 is: 136,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,124.68 : 229,281.78 = 99,061 : x
  2. Step 2: Convert to fraction form
    166,124.68/229,281.78 = 99,061/x
  3. Step 3: Cross multiply
    166,124.68x = 229,281.78 × 99,061
  4. Step 4: Simplify right side
    166,124.68x = 22,712,882,408.58
  5. Step 5: Solve for x
    x = 22,712,882,408.58/166,124.68
  6. Step 6: Final answer
    x = 136,721.90

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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.