Home / 155,306.60-232,844.70-66,487.40

Finding the Fourth Proportional to 155,306.60, 232,844.70 and 66,487.40

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Solution

The fourth proportional to 155,306.60, 232,844.70 and 66,487.40 is: 99,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,306.60 : 232,844.70 = 66,487.40 : x
  2. Step 2: Convert to fraction form
    155,306.60/232,844.70 = 66,487.40/x
  3. Step 3: Cross multiply
    155,306.60x = 232,844.70 × 66,487.40
  4. Step 4: Simplify right side
    155,306.60x = 15,481,238,706.78
  5. Step 5: Solve for x
    x = 15,481,238,706.78/155,306.60
  6. Step 6: Final answer
    x = 99,681.78

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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.