Home / 148,301.80-204,657.09-80,319.58

Finding the Fourth Proportional to 148,301.80, 204,657.09 and 80,319.58

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Solution

The fourth proportional to 148,301.80, 204,657.09 and 80,319.58 is: 110,841.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,301.80 : 204,657.09 = 80,319.58 : x
  2. Step 2: Convert to fraction form
    148,301.80/204,657.09 = 80,319.58/x
  3. Step 3: Cross multiply
    148,301.80x = 204,657.09 × 80,319.58
  4. Step 4: Simplify right side
    148,301.80x = 16,437,970,489.54
  5. Step 5: Solve for x
    x = 16,437,970,489.54/148,301.80
  6. Step 6: Final answer
    x = 110,841.35

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1.5x scale

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.