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Finding the Fourth Proportional to 133,248.96, 199,816.54 and 77,127.80

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Solution

The fourth proportional to 133,248.96, 199,816.54 and 77,127.80 is: 115,658.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,248.96 : 199,816.54 = 77,127.80 : x
  2. Step 2: Convert to fraction form
    133,248.96/199,816.54 = 77,127.80/x
  3. Step 3: Cross multiply
    133,248.96x = 199,816.54 × 77,127.80
  4. Step 4: Simplify right side
    133,248.96x = 15,411,410,125.03
  5. Step 5: Solve for x
    x = 15,411,410,125.03/133,248.96
  6. Step 6: Final answer
    x = 115,658.77

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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.