Home / 480,091.68-720,178.56-125,105.76

Finding the Fourth Proportional to 480,091.68, 720,178.56 and 125,105.76

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Solution

The fourth proportional to 480,091.68, 720,178.56 and 125,105.76 is: 187,669.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,091.68 : 720,178.56 = 125,105.76 : x
  2. Step 2: Convert to fraction form
    480,091.68/720,178.56 = 125,105.76/x
  3. Step 3: Cross multiply
    480,091.68x = 720,178.56 × 125,105.76
  4. Step 4: Simplify right side
    480,091.68x = 90,098,486,084.51
  5. Step 5: Solve for x
    x = 90,098,486,084.51/480,091.68
  6. Step 6: Final answer
    x = 187,669.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.