Home / 102,747.10-141,860.82-66,536.06

Finding the Fourth Proportional to 102,747.10, 141,860.82 and 66,536.06

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Solution

The fourth proportional to 102,747.10, 141,860.82 and 66,536.06 is: 91,864.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,747.10 : 141,860.82 = 66,536.06 : x
  2. Step 2: Convert to fraction form
    102,747.10/141,860.82 = 66,536.06/x
  3. Step 3: Cross multiply
    102,747.10x = 141,860.82 × 66,536.06
  4. Step 4: Simplify right side
    102,747.10x = 9,438,860,031.17
  5. Step 5: Solve for x
    x = 9,438,860,031.17/102,747.10
  6. Step 6: Final answer
    x = 91,864.98

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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.