Home / 98,711.38-148,001.46-54,359.02

Finding the Fourth Proportional to 98,711.38, 148,001.46 and 54,359.02

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Solution

The fourth proportional to 98,711.38, 148,001.46 and 54,359.02 is: 81,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,711.38 : 148,001.46 = 54,359.02 : x
  2. Step 2: Convert to fraction form
    98,711.38/148,001.46 = 54,359.02/x
  3. Step 3: Cross multiply
    98,711.38x = 148,001.46 × 54,359.02
  4. Step 4: Simplify right side
    98,711.38x = 8,045,214,324.17
  5. Step 5: Solve for x
    x = 8,045,214,324.17/98,711.38
  6. Step 6: Final answer
    x = 81,502.40

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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.