Home / 148,601.28-205,071.66-80,618.70

Finding the Fourth Proportional to 148,601.28, 205,071.66 and 80,618.70

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Solution

The fourth proportional to 148,601.28, 205,071.66 and 80,618.70 is: 111,254.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,601.28 : 205,071.66 = 80,618.70 : x
  2. Step 2: Convert to fraction form
    148,601.28/205,071.66 = 80,618.70/x
  3. Step 3: Cross multiply
    148,601.28x = 205,071.66 × 80,618.70
  4. Step 4: Simplify right side
    148,601.28x = 16,532,610,636.04
  5. Step 5: Solve for x
    x = 16,532,610,636.04/148,601.28
  6. Step 6: Final answer
    x = 111,254.83

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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.