Home / 158,816.45-219,167.15-87,201.11

Finding the Fourth Proportional to 158,816.45, 219,167.15 and 87,201.11

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Solution

The fourth proportional to 158,816.45, 219,167.15 and 87,201.11 is: 120,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,816.45 : 219,167.15 = 87,201.11 : x
  2. Step 2: Convert to fraction form
    158,816.45/219,167.15 = 87,201.11/x
  3. Step 3: Cross multiply
    158,816.45x = 219,167.15 × 87,201.11
  4. Step 4: Simplify right side
    158,816.45x = 19,111,618,867.45
  5. Step 5: Solve for x
    x = 19,111,618,867.45/158,816.45
  6. Step 6: Final answer
    x = 120,337.78

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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.