Home / 136,211.18-188,064.04-85,244.56

Finding the Fourth Proportional to 136,211.18, 188,064.04 and 85,244.56

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Solution

The fourth proportional to 136,211.18, 188,064.04 and 85,244.56 is: 117,695.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,211.18 : 188,064.04 = 85,244.56 : x
  2. Step 2: Convert to fraction form
    136,211.18/188,064.04 = 85,244.56/x
  3. Step 3: Cross multiply
    136,211.18x = 188,064.04 × 85,244.56
  4. Step 4: Simplify right side
    136,211.18x = 16,031,436,341.62
  5. Step 5: Solve for x
    x = 16,031,436,341.62/136,211.18
  6. Step 6: Final answer
    x = 117,695.45

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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.