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Finding the Fourth Proportional to 167,387.65, 251,095.14 and 78,592.72

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Solution

The fourth proportional to 167,387.65, 251,095.14 and 78,592.72 is: 117,895.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,387.65 : 251,095.14 = 78,592.72 : x
  2. Step 2: Convert to fraction form
    167,387.65/251,095.14 = 78,592.72/x
  3. Step 3: Cross multiply
    167,387.65x = 251,095.14 × 78,592.72
  4. Step 4: Simplify right side
    167,387.65x = 19,734,250,031.38
  5. Step 5: Solve for x
    x = 19,734,250,031.38/167,387.65
  6. Step 6: Final answer
    x = 117,895.50

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.