Home / 147,882.06-221,921.40-54,387.81

Finding the Fourth Proportional to 147,882.06, 221,921.40 and 54,387.81

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Solution

The fourth proportional to 147,882.06, 221,921.40 and 54,387.81 is: 81,617.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,882.06 : 221,921.40 = 54,387.81 : x
  2. Step 2: Convert to fraction form
    147,882.06/221,921.40 = 54,387.81/x
  3. Step 3: Cross multiply
    147,882.06x = 221,921.40 × 54,387.81
  4. Step 4: Simplify right side
    147,882.06x = 12,069,818,938.13
  5. Step 5: Solve for x
    x = 12,069,818,938.13/147,882.06
  6. Step 6: Final answer
    x = 81,617.87

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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.