Home / 239,487.39-359,242.02-81,717.21

Finding the Fourth Proportional to 239,487.39, 359,242.02 and 81,717.21

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Solution

The fourth proportional to 239,487.39, 359,242.02 and 81,717.21 is: 122,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,487.39 : 359,242.02 = 81,717.21 : x
  2. Step 2: Convert to fraction form
    239,487.39/359,242.02 = 81,717.21/x
  3. Step 3: Cross multiply
    239,487.39x = 359,242.02 × 81,717.21
  4. Step 4: Simplify right side
    239,487.39x = 29,356,255,589.16
  5. Step 5: Solve for x
    x = 29,356,255,589.16/239,487.39
  6. Step 6: Final answer
    x = 122,579.55

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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.