Home / 99,108.90-136,770.39-56,668.41

Finding the Fourth Proportional to 99,108.90, 136,770.39 and 56,668.41

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Solution

The fourth proportional to 99,108.90, 136,770.39 and 56,668.41 is: 78,202.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,108.90 : 136,770.39 = 56,668.41 : x
  2. Step 2: Convert to fraction form
    99,108.90/136,770.39 = 56,668.41/x
  3. Step 3: Cross multiply
    99,108.90x = 136,770.39 × 56,668.41
  4. Step 4: Simplify right side
    99,108.90x = 7,750,560,536.38
  5. Step 5: Solve for x
    x = 7,750,560,536.38/99,108.90
  6. Step 6: Final answer
    x = 78,202.47

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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.