Home / 113,888.78-170,735.96-80,503.82

Finding the Fourth Proportional to 113,888.78, 170,735.96 and 80,503.82

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Solution

The fourth proportional to 113,888.78, 170,735.96 and 80,503.82 is: 120,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,888.78 : 170,735.96 = 80,503.82 : x
  2. Step 2: Convert to fraction form
    113,888.78/170,735.96 = 80,503.82/x
  3. Step 3: Cross multiply
    113,888.78x = 170,735.96 × 80,503.82
  4. Step 4: Simplify right side
    113,888.78x = 13,744,896,338.95
  5. Step 5: Solve for x
    x = 13,744,896,338.95/113,888.78
  6. Step 6: Final answer
    x = 120,687.02

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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.