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Finding the Fourth Proportional to 155,343.60, 232,842.60 and 85,273.20

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Solution

The fourth proportional to 155,343.60, 232,842.60 and 85,273.20 is: 127,814.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,343.60 : 232,842.60 = 85,273.20 : x
  2. Step 2: Convert to fraction form
    155,343.60/232,842.60 = 85,273.20/x
  3. Step 3: Cross multiply
    155,343.60x = 232,842.60 × 85,273.20
  4. Step 4: Simplify right side
    155,343.60x = 19,855,233,598.32
  5. Step 5: Solve for x
    x = 19,855,233,598.32/155,343.60
  6. Step 6: Final answer
    x = 127,814.94

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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.