Home / 138,716.66-191,427.62-75,053.06

Finding the Fourth Proportional to 138,716.66, 191,427.62 and 75,053.06

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Solution

The fourth proportional to 138,716.66, 191,427.62 and 75,053.06 is: 103,572.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,716.66 : 191,427.62 = 75,053.06 : x
  2. Step 2: Convert to fraction form
    138,716.66/191,427.62 = 75,053.06/x
  3. Step 3: Cross multiply
    138,716.66x = 191,427.62 × 75,053.06
  4. Step 4: Simplify right side
    138,716.66x = 14,367,228,649.52
  5. Step 5: Solve for x
    x = 14,367,228,649.52/138,716.66
  6. Step 6: Final answer
    x = 103,572.48

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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.