Home / 155,433.90-232,822.80-138,812.70

Finding the Fourth Proportional to 155,433.90, 232,822.80 and 138,812.70

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Solution

The fourth proportional to 155,433.90, 232,822.80 and 138,812.70 is: 207,926.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,433.90 : 232,822.80 = 138,812.70 : x
  2. Step 2: Convert to fraction form
    155,433.90/232,822.80 = 138,812.70/x
  3. Step 3: Cross multiply
    155,433.90x = 232,822.80 × 138,812.70
  4. Step 4: Simplify right side
    155,433.90x = 32,318,761,489.56
  5. Step 5: Solve for x
    x = 32,318,761,489.56/155,433.90
  6. Step 6: Final answer
    x = 207,926.08

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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.