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Finding the Fourth Proportional to 159,498.40, 239,281.92 and 79,579.34

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Solution

The fourth proportional to 159,498.40, 239,281.92 and 79,579.34 is: 119,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,498.40 : 239,281.92 = 79,579.34 : x
  2. Step 2: Convert to fraction form
    159,498.40/239,281.92 = 79,579.34/x
  3. Step 3: Cross multiply
    159,498.40x = 239,281.92 × 79,579.34
  4. Step 4: Simplify right side
    159,498.40x = 19,041,897,267.53
  5. Step 5: Solve for x
    x = 19,041,897,267.53/159,498.40
  6. Step 6: Final answer
    x = 119,386.13

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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.