Home / 185,388.46-278,165.40-85,495.04

Finding the Fourth Proportional to 185,388.46, 278,165.40 and 85,495.04

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Solution

The fourth proportional to 185,388.46, 278,165.40 and 85,495.04 is: 128,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,388.46 : 278,165.40 = 85,495.04 : x
  2. Step 2: Convert to fraction form
    185,388.46/278,165.40 = 85,495.04/x
  3. Step 3: Cross multiply
    185,388.46x = 278,165.40 × 85,495.04
  4. Step 4: Simplify right side
    185,388.46x = 23,781,761,999.62
  5. Step 5: Solve for x
    x = 23,781,761,999.62/185,388.46
  6. Step 6: Final answer
    x = 128,280.70

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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.