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Finding the Fourth Proportional to 159,637.80, 239,489.10 and 54,467.40

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Solution

The fourth proportional to 159,637.80, 239,489.10 and 54,467.40 is: 81,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,637.80 : 239,489.10 = 54,467.40 : x
  2. Step 2: Convert to fraction form
    159,637.80/239,489.10 = 54,467.40/x
  3. Step 3: Cross multiply
    159,637.80x = 239,489.10 × 54,467.40
  4. Step 4: Simplify right side
    159,637.80x = 13,044,348,605.34
  5. Step 5: Solve for x
    x = 13,044,348,605.34/159,637.80
  6. Step 6: Final answer
    x = 81,712.15

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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.