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Finding the Fourth Proportional to 145,767.34, 218,668.52 and 137,795.72

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Solution

The fourth proportional to 145,767.34, 218,668.52 and 137,795.72 is: 206,710.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,767.34 : 218,668.52 = 137,795.72 : x
  2. Step 2: Convert to fraction form
    145,767.34/218,668.52 = 137,795.72/x
  3. Step 3: Cross multiply
    145,767.34x = 218,668.52 × 137,795.72
  4. Step 4: Simplify right side
    145,767.34x = 30,131,586,154.73
  5. Step 5: Solve for x
    x = 30,131,586,154.73/145,767.34
  6. Step 6: Final answer
    x = 206,710.14

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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.