Home / 159,453.12-220,045.56-87,833.36

Finding the Fourth Proportional to 159,453.12, 220,045.56 and 87,833.36

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Solution

The fourth proportional to 159,453.12, 220,045.56 and 87,833.36 is: 121,210.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,453.12 : 220,045.56 = 87,833.36 : x
  2. Step 2: Convert to fraction form
    159,453.12/220,045.56 = 87,833.36/x
  3. Step 3: Cross multiply
    159,453.12x = 220,045.56 × 87,833.36
  4. Step 4: Simplify right side
    159,453.12x = 19,327,340,887.88
  5. Step 5: Solve for x
    x = 19,327,340,887.88/159,453.12
  6. Step 6: Final answer
    x = 121,210.18

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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.