Home / 125,663.46-173,507.32-87,359.10

Finding the Fourth Proportional to 125,663.46, 173,507.32 and 87,359.10

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Solution

The fourth proportional to 125,663.46, 173,507.32 and 87,359.10 is: 120,619.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,663.46 : 173,507.32 = 87,359.10 : x
  2. Step 2: Convert to fraction form
    125,663.46/173,507.32 = 87,359.10/x
  3. Step 3: Cross multiply
    125,663.46x = 173,507.32 × 87,359.10
  4. Step 4: Simplify right side
    125,663.46x = 15,157,443,318.61
  5. Step 5: Solve for x
    x = 15,157,443,318.61/125,663.46
  6. Step 6: Final answer
    x = 120,619.34

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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.