Home / 179,021.76-268,532.55-85,243.20

Finding the Fourth Proportional to 179,021.76, 268,532.55 and 85,243.20

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Solution

The fourth proportional to 179,021.76, 268,532.55 and 85,243.20 is: 127,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,021.76 : 268,532.55 = 85,243.20 : x
  2. Step 2: Convert to fraction form
    179,021.76/268,532.55 = 85,243.20/x
  3. Step 3: Cross multiply
    179,021.76x = 268,532.55 × 85,243.20
  4. Step 4: Simplify right side
    179,021.76x = 22,890,573,866.16
  5. Step 5: Solve for x
    x = 22,890,573,866.16/179,021.76
  6. Step 6: Final answer
    x = 127,864.76

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1.5x scale

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.