Home / 156,115.31-233,963.17-81,079.34

Finding the Fourth Proportional to 156,115.31, 233,963.17 and 81,079.34

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Solution

The fourth proportional to 156,115.31, 233,963.17 and 81,079.34 is: 121,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,115.31 : 233,963.17 = 81,079.34 : x
  2. Step 2: Convert to fraction form
    156,115.31/233,963.17 = 81,079.34/x
  3. Step 3: Cross multiply
    156,115.31x = 233,963.17 × 81,079.34
  4. Step 4: Simplify right side
    156,115.31x = 18,969,578,035.39
  5. Step 5: Solve for x
    x = 18,969,578,035.39/156,115.31
  6. Step 6: Final answer
    x = 121,510.05

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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.