Home / 159,333.41-219,886.38-87,720.10

Finding the Fourth Proportional to 159,333.41, 219,886.38 and 87,720.10

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Solution

The fourth proportional to 159,333.41, 219,886.38 and 87,720.10 is: 121,057.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,333.41 : 219,886.38 = 87,720.10 : x
  2. Step 2: Convert to fraction form
    159,333.41/219,886.38 = 87,720.10/x
  3. Step 3: Cross multiply
    159,333.41x = 219,886.38 × 87,720.10
  4. Step 4: Simplify right side
    159,333.41x = 19,288,454,692.52
  5. Step 5: Solve for x
    x = 19,288,454,692.52/159,333.41
  6. Step 6: Final answer
    x = 121,057.19

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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.