Home / 187,008.60-280,346.04-81,744.24

Finding the Fourth Proportional to 187,008.60, 280,346.04 and 81,744.24

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Solution

The fourth proportional to 187,008.60, 280,346.04 and 81,744.24 is: 122,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,008.60 : 280,346.04 = 81,744.24 : x
  2. Step 2: Convert to fraction form
    187,008.60/280,346.04 = 81,744.24/x
  3. Step 3: Cross multiply
    187,008.60x = 280,346.04 × 81,744.24
  4. Step 4: Simplify right side
    187,008.60x = 22,916,673,976.81
  5. Step 5: Solve for x
    x = 22,916,673,976.81/187,008.60
  6. Step 6: Final answer
    x = 122,543.42

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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.