Home / 100,446.31-138,614.73-58,003.93

Finding the Fourth Proportional to 100,446.31, 138,614.73 and 58,003.93

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Solution

The fourth proportional to 100,446.31, 138,614.73 and 58,003.93 is: 80,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,446.31 : 138,614.73 = 58,003.93 : x
  2. Step 2: Convert to fraction form
    100,446.31/138,614.73 = 58,003.93/x
  3. Step 3: Cross multiply
    100,446.31x = 138,614.73 × 58,003.93
  4. Step 4: Simplify right side
    100,446.31x = 8,040,199,095.89
  5. Step 5: Solve for x
    x = 8,040,199,095.89/100,446.31
  6. Step 6: Final answer
    x = 80,044.74

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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.