Home / 138,864.17-191,632.23-75,201.82

Finding the Fourth Proportional to 138,864.17, 191,632.23 and 75,201.82

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Solution

The fourth proportional to 138,864.17, 191,632.23 and 75,201.82 is: 103,778.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,864.17 : 191,632.23 = 75,201.82 : x
  2. Step 2: Convert to fraction form
    138,864.17/191,632.23 = 75,201.82/x
  3. Step 3: Cross multiply
    138,864.17x = 191,632.23 × 75,201.82
  4. Step 4: Simplify right side
    138,864.17x = 14,411,091,987.58
  5. Step 5: Solve for x
    x = 14,411,091,987.58/138,864.17
  6. Step 6: Final answer
    x = 103,778.33

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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.