Home / 125,631.23-173,385.85-74,644.38

Finding the Fourth Proportional to 125,631.23, 173,385.85 and 74,644.38

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Solution

The fourth proportional to 125,631.23, 173,385.85 and 74,644.38 is: 103,018.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,631.23 : 173,385.85 = 74,644.38 : x
  2. Step 2: Convert to fraction form
    125,631.23/173,385.85 = 74,644.38/x
  3. Step 3: Cross multiply
    125,631.23x = 173,385.85 × 74,644.38
  4. Step 4: Simplify right side
    125,631.23x = 12,942,279,274.02
  5. Step 5: Solve for x
    x = 12,942,279,274.02/125,631.23
  6. Step 6: Final answer
    x = 103,018.01

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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.