Home / 104,024.20-156,036.30-91,971.40

Finding the Fourth Proportional to 104,024.20, 156,036.30 and 91,971.40

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Solution

The fourth proportional to 104,024.20, 156,036.30 and 91,971.40 is: 137,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,024.20 : 156,036.30 = 91,971.40 : x
  2. Step 2: Convert to fraction form
    104,024.20/156,036.30 = 91,971.40/x
  3. Step 3: Cross multiply
    104,024.20x = 156,036.30 × 91,971.40
  4. Step 4: Simplify right side
    104,024.20x = 14,350,876,961.82
  5. Step 5: Solve for x
    x = 14,350,876,961.82/104,024.20
  6. Step 6: Final answer
    x = 137,957.10

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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.