Home / 100,365.24-138,501.96-62,114.61

Finding the Fourth Proportional to 100,365.24, 138,501.96 and 62,114.61

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Solution

The fourth proportional to 100,365.24, 138,501.96 and 62,114.61 is: 85,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,365.24 : 138,501.96 = 62,114.61 : x
  2. Step 2: Convert to fraction form
    100,365.24/138,501.96 = 62,114.61/x
  3. Step 3: Cross multiply
    100,365.24x = 138,501.96 × 62,114.61
  4. Step 4: Simplify right side
    100,365.24x = 8,602,995,229.64
  5. Step 5: Solve for x
    x = 8,602,995,229.64/100,365.24
  6. Step 6: Final answer
    x = 85,716.88

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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.