Home / 138,921.73-191,711.96-75,259.53

Finding the Fourth Proportional to 138,921.73, 191,711.96 and 75,259.53

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Solution

The fourth proportional to 138,921.73, 191,711.96 and 75,259.53 is: 103,858.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,921.73 : 191,711.96 = 75,259.53 : x
  2. Step 2: Convert to fraction form
    138,921.73/191,711.96 = 75,259.53/x
  3. Step 3: Cross multiply
    138,921.73x = 191,711.96 × 75,259.53
  4. Step 4: Simplify right side
    138,921.73x = 14,428,152,334.24
  5. Step 5: Solve for x
    x = 14,428,152,334.24/138,921.73
  6. Step 6: Final answer
    x = 103,858.14

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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.