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Finding the Fourth Proportional to 136,136.85, 203,913.68 and 88,897.65

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Solution

The fourth proportional to 136,136.85, 203,913.68 and 88,897.65 is: 133,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,136.85 : 203,913.68 = 88,897.65 : x
  2. Step 2: Convert to fraction form
    136,136.85/203,913.68 = 88,897.65/x
  3. Step 3: Cross multiply
    136,136.85x = 203,913.68 × 88,897.65
  4. Step 4: Simplify right side
    136,136.85x = 18,127,446,510.36
  5. Step 5: Solve for x
    x = 18,127,446,510.36/136,136.85
  6. Step 6: Final answer
    x = 133,156.06

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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.