Home / 125,892.28-173,760.90-72,176.32

Finding the Fourth Proportional to 125,892.28, 173,760.90 and 72,176.32

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Solution

The fourth proportional to 125,892.28, 173,760.90 and 72,176.32 is: 99,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,892.28 : 173,760.90 = 72,176.32 : x
  2. Step 2: Convert to fraction form
    125,892.28/173,760.90 = 72,176.32/x
  3. Step 3: Cross multiply
    125,892.28x = 173,760.90 × 72,176.32
  4. Step 4: Simplify right side
    125,892.28x = 12,541,422,321.89
  5. Step 5: Solve for x
    x = 12,541,422,321.89/125,892.28
  6. Step 6: Final answer
    x = 99,620.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.