Home / 98,603.29-148,036.19-66,689.57

Finding the Fourth Proportional to 98,603.29, 148,036.19 and 66,689.57

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Solution

The fourth proportional to 98,603.29, 148,036.19 and 66,689.57 is: 100,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,603.29 : 148,036.19 = 66,689.57 : x
  2. Step 2: Convert to fraction form
    98,603.29/148,036.19 = 66,689.57/x
  3. Step 3: Cross multiply
    98,603.29x = 148,036.19 × 66,689.57
  4. Step 4: Simplify right side
    98,603.29x = 9,872,469,855.54
  5. Step 5: Solve for x
    x = 9,872,469,855.54/98,603.29
  6. Step 6: Final answer
    x = 100,123.13

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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.