Home / 223,627.28-308,620.68-123,031.76

Finding the Fourth Proportional to 223,627.28, 308,620.68 and 123,031.76

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Solution

The fourth proportional to 223,627.28, 308,620.68 and 123,031.76 is: 169,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,627.28 : 308,620.68 = 123,031.76 : x
  2. Step 2: Convert to fraction form
    223,627.28/308,620.68 = 123,031.76/x
  3. Step 3: Cross multiply
    223,627.28x = 308,620.68 × 123,031.76
  4. Step 4: Simplify right side
    223,627.28x = 37,970,145,432.80
  5. Step 5: Solve for x
    x = 37,970,145,432.80/223,627.28
  6. Step 6: Final answer
    x = 169,792.10

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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.