Home / 102,422.48-141,262.90-66,623.92

Finding the Fourth Proportional to 102,422.48, 141,262.90 and 66,623.92

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Solution

The fourth proportional to 102,422.48, 141,262.90 and 66,623.92 is: 91,888.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,422.48 : 141,262.90 = 66,623.92 : x
  2. Step 2: Convert to fraction form
    102,422.48/141,262.90 = 66,623.92/x
  3. Step 3: Cross multiply
    102,422.48x = 141,262.90 × 66,623.92
  4. Step 4: Simplify right side
    102,422.48x = 9,411,488,148.57
  5. Step 5: Solve for x
    x = 9,411,488,148.57/102,422.48
  6. Step 6: Final answer
    x = 91,888.89

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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.