Home / 98,814.10-136,442.08-91,257.66

Finding the Fourth Proportional to 98,814.10, 136,442.08 and 91,257.66

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Solution

The fourth proportional to 98,814.10, 136,442.08 and 91,257.66 is: 126,008.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,814.10 : 136,442.08 = 91,257.66 : x
  2. Step 2: Convert to fraction form
    98,814.10/136,442.08 = 91,257.66/x
  3. Step 3: Cross multiply
    98,814.10x = 136,442.08 × 91,257.66
  4. Step 4: Simplify right side
    98,814.10x = 12,451,384,946.33
  5. Step 5: Solve for x
    x = 12,451,384,946.33/98,814.10
  6. Step 6: Final answer
    x = 126,008.18

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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.