Home / 140,119.68-208,945.59-138,856.08

Finding the Fourth Proportional to 140,119.68, 208,945.59 and 138,856.08

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Solution

The fourth proportional to 140,119.68, 208,945.59 and 138,856.08 is: 207,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,119.68 : 208,945.59 = 138,856.08 : x
  2. Step 2: Convert to fraction form
    140,119.68/208,945.59 = 138,856.08/x
  3. Step 3: Cross multiply
    140,119.68x = 208,945.59 × 138,856.08
  4. Step 4: Simplify right side
    140,119.68x = 29,013,365,560.69
  5. Step 5: Solve for x
    x = 29,013,365,560.69/140,119.68
  6. Step 6: Final answer
    x = 207,061.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.