Home / 151,575.18-209,171.61-87,923.76

Finding the Fourth Proportional to 151,575.18, 209,171.61 and 87,923.76

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Solution

The fourth proportional to 151,575.18, 209,171.61 and 87,923.76 is: 121,333.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,575.18 : 209,171.61 = 87,923.76 : x
  2. Step 2: Convert to fraction form
    151,575.18/209,171.61 = 87,923.76/x
  3. Step 3: Cross multiply
    151,575.18x = 209,171.61 × 87,923.76
  4. Step 4: Simplify right side
    151,575.18x = 18,391,154,436.45
  5. Step 5: Solve for x
    x = 18,391,154,436.45/151,575.18
  6. Step 6: Final answer
    x = 121,333.55

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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.