Home / 148,034.46-204,290.56-80,970.78

Finding the Fourth Proportional to 148,034.46, 204,290.56 and 80,970.78

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Solution

The fourth proportional to 148,034.46, 204,290.56 and 80,970.78 is: 111,741.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,034.46 : 204,290.56 = 80,970.78 : x
  2. Step 2: Convert to fraction form
    148,034.46/204,290.56 = 80,970.78/x
  3. Step 3: Cross multiply
    148,034.46x = 204,290.56 × 80,970.78
  4. Step 4: Simplify right side
    148,034.46x = 16,541,565,989.84
  5. Step 5: Solve for x
    x = 16,541,565,989.84/148,034.46
  6. Step 6: Final answer
    x = 111,741.32

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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.