Home / 155,814.22-215,046.66-115,471.36

Finding the Fourth Proportional to 155,814.22, 215,046.66 and 115,471.36

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Solution

The fourth proportional to 155,814.22, 215,046.66 and 115,471.36 is: 159,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,814.22 : 215,046.66 = 115,471.36 : x
  2. Step 2: Convert to fraction form
    155,814.22/215,046.66 = 115,471.36/x
  3. Step 3: Cross multiply
    155,814.22x = 215,046.66 × 115,471.36
  4. Step 4: Simplify right side
    155,814.22x = 24,831,730,293.66
  5. Step 5: Solve for x
    x = 24,831,730,293.66/155,814.22
  6. Step 6: Final answer
    x = 159,367.55

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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.