Home / 153,043.92-211,161.38-89,345.11

Finding the Fourth Proportional to 153,043.92, 211,161.38 and 89,345.11

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Solution

The fourth proportional to 153,043.92, 211,161.38 and 89,345.11 is: 123,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,043.92 : 211,161.38 = 89,345.11 : x
  2. Step 2: Convert to fraction form
    153,043.92/211,161.38 = 89,345.11/x
  3. Step 3: Cross multiply
    153,043.92x = 211,161.38 × 89,345.11
  4. Step 4: Simplify right side
    153,043.92x = 18,866,236,723.85
  5. Step 5: Solve for x
    x = 18,866,236,723.85/153,043.92
  6. Step 6: Final answer
    x = 123,273.35

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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.