Home / 159,338.32-219,885.18-87,716.92

Finding the Fourth Proportional to 159,338.32, 219,885.18 and 87,716.92

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Solution

The fourth proportional to 159,338.32, 219,885.18 and 87,716.92 is: 121,048.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,338.32 : 219,885.18 = 87,716.92 : x
  2. Step 2: Convert to fraction form
    159,338.32/219,885.18 = 87,716.92/x
  3. Step 3: Cross multiply
    159,338.32x = 219,885.18 × 87,716.92
  4. Step 4: Simplify right side
    159,338.32x = 19,287,650,743.25
  5. Step 5: Solve for x
    x = 19,287,650,743.25/159,338.32
  6. Step 6: Final answer
    x = 121,048.41

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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.