Home / 155,976.39-215,273.90-88,012.63

Finding the Fourth Proportional to 155,976.39, 215,273.90 and 88,012.63

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Solution

The fourth proportional to 155,976.39, 215,273.90 and 88,012.63 is: 121,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,976.39 : 215,273.90 = 88,012.63 : x
  2. Step 2: Convert to fraction form
    155,976.39/215,273.90 = 88,012.63/x
  3. Step 3: Cross multiply
    155,976.39x = 215,273.90 × 88,012.63
  4. Step 4: Simplify right side
    155,976.39x = 18,946,822,109.36
  5. Step 5: Solve for x
    x = 18,946,822,109.36/155,976.39
  6. Step 6: Final answer
    x = 121,472.37

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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.