Home / 125,939.10-188,902.28-47,047.13

Finding the Fourth Proportional to 125,939.10, 188,902.28 and 47,047.13

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Solution

The fourth proportional to 125,939.10, 188,902.28 and 47,047.13 is: 70,568.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,939.10 : 188,902.28 = 47,047.13 : x
  2. Step 2: Convert to fraction form
    125,939.10/188,902.28 = 47,047.13/x
  3. Step 3: Cross multiply
    125,939.10x = 188,902.28 × 47,047.13
  4. Step 4: Simplify right side
    125,939.10x = 8,887,309,741.31
  5. Step 5: Solve for x
    x = 8,887,309,741.31/125,939.10
  6. Step 6: Final answer
    x = 70,568.31

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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.