Home / 98,890.38-136,431.96-63,072.18

Finding the Fourth Proportional to 98,890.38, 136,431.96 and 63,072.18

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Solution

The fourth proportional to 98,890.38, 136,431.96 and 63,072.18 is: 87,016.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,890.38 : 136,431.96 = 63,072.18 : x
  2. Step 2: Convert to fraction form
    98,890.38/136,431.96 = 63,072.18/x
  3. Step 3: Cross multiply
    98,890.38x = 136,431.96 × 63,072.18
  4. Step 4: Simplify right side
    98,890.38x = 8,605,061,138.87
  5. Step 5: Solve for x
    x = 8,605,061,138.87/98,890.38
  6. Step 6: Final answer
    x = 87,016.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.