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Finding the Fourth Proportional to 155,169.60, 232,754.40 and 76,437.60

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Solution

The fourth proportional to 155,169.60, 232,754.40 and 76,437.60 is: 114,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,169.60 : 232,754.40 = 76,437.60 : x
  2. Step 2: Convert to fraction form
    155,169.60/232,754.40 = 76,437.60/x
  3. Step 3: Cross multiply
    155,169.60x = 232,754.40 × 76,437.60
  4. Step 4: Simplify right side
    155,169.60x = 17,791,187,725.44
  5. Step 5: Solve for x
    x = 17,791,187,725.44/155,169.60
  6. Step 6: Final answer
    x = 114,656.40

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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.