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Finding the Fourth Proportional to 115,000.98, 158,700.17 and 63,316.44

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Solution

The fourth proportional to 115,000.98, 158,700.17 and 63,316.44 is: 87,376.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,000.98 : 158,700.17 = 63,316.44 : x
  2. Step 2: Convert to fraction form
    115,000.98/158,700.17 = 63,316.44/x
  3. Step 3: Cross multiply
    115,000.98x = 158,700.17 × 63,316.44
  4. Step 4: Simplify right side
    115,000.98x = 10,048,329,750.04
  5. Step 5: Solve for x
    x = 10,048,329,750.04/115,000.98
  6. Step 6: Final answer
    x = 87,376.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.