Home / 161,819.76-223,318.88-90,200.32

Finding the Fourth Proportional to 161,819.76, 223,318.88 and 90,200.32

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Solution

The fourth proportional to 161,819.76, 223,318.88 and 90,200.32 is: 124,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,819.76 : 223,318.88 = 90,200.32 : x
  2. Step 2: Convert to fraction form
    161,819.76/223,318.88 = 90,200.32/x
  3. Step 3: Cross multiply
    161,819.76x = 223,318.88 × 90,200.32
  4. Step 4: Simplify right side
    161,819.76x = 20,143,434,438.04
  5. Step 5: Solve for x
    x = 20,143,434,438.04/161,819.76
  6. Step 6: Final answer
    x = 124,480.68

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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.