Home / 169,211.60-253,795.36-80,521.52

Finding the Fourth Proportional to 169,211.60, 253,795.36 and 80,521.52

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Solution

The fourth proportional to 169,211.60, 253,795.36 and 80,521.52 is: 120,771.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,211.60 : 253,795.36 = 80,521.52 : x
  2. Step 2: Convert to fraction form
    169,211.60/253,795.36 = 80,521.52/x
  3. Step 3: Cross multiply
    169,211.60x = 253,795.36 × 80,521.52
  4. Step 4: Simplify right side
    169,211.60x = 20,435,988,156.15
  5. Step 5: Solve for x
    x = 20,435,988,156.15/169,211.60
  6. Step 6: Final answer
    x = 120,771.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.