Home / 136,145.71-204,218.66-42,658.75

Finding the Fourth Proportional to 136,145.71, 204,218.66 and 42,658.75

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Solution

The fourth proportional to 136,145.71, 204,218.66 and 42,658.75 is: 63,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,145.71 : 204,218.66 = 42,658.75 : x
  2. Step 2: Convert to fraction form
    136,145.71/204,218.66 = 42,658.75/x
  3. Step 3: Cross multiply
    136,145.71x = 204,218.66 × 42,658.75
  4. Step 4: Simplify right side
    136,145.71x = 8,711,712,548.98
  5. Step 5: Solve for x
    x = 8,711,712,548.98/136,145.71
  6. Step 6: Final answer
    x = 63,988.15

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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.