Home / 159,094.12-219,550.71-87,478.75

Finding the Fourth Proportional to 159,094.12, 219,550.71 and 87,478.75

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Solution

The fourth proportional to 159,094.12, 219,550.71 and 87,478.75 is: 120,721.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,094.12 : 219,550.71 = 87,478.75 : x
  2. Step 2: Convert to fraction form
    159,094.12/219,550.71 = 87,478.75/x
  3. Step 3: Cross multiply
    159,094.12x = 219,550.71 × 87,478.75
  4. Step 4: Simplify right side
    159,094.12x = 19,206,022,194.49
  5. Step 5: Solve for x
    x = 19,206,022,194.49/159,094.12
  6. Step 6: Final answer
    x = 120,721.13

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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.