Home / 102,754.46-153,987.26-77,437.20

Finding the Fourth Proportional to 102,754.46, 153,987.26 and 77,437.20

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Solution

The fourth proportional to 102,754.46, 153,987.26 and 77,437.20 is: 116,046.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,754.46 : 153,987.26 = 77,437.20 : x
  2. Step 2: Convert to fraction form
    102,754.46/153,987.26 = 77,437.20/x
  3. Step 3: Cross multiply
    102,754.46x = 153,987.26 × 77,437.20
  4. Step 4: Simplify right side
    102,754.46x = 11,924,342,250.07
  5. Step 5: Solve for x
    x = 11,924,342,250.07/102,754.46
  6. Step 6: Final answer
    x = 116,046.96

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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.