Home / 155,976.32-215,247.46-84,356.34

Finding the Fourth Proportional to 155,976.32, 215,247.46 and 84,356.34

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Solution

The fourth proportional to 155,976.32, 215,247.46 and 84,356.34 is: 116,411.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,976.32 : 215,247.46 = 84,356.34 : x
  2. Step 2: Convert to fraction form
    155,976.32/215,247.46 = 84,356.34/x
  3. Step 3: Cross multiply
    155,976.32x = 215,247.46 × 84,356.34
  4. Step 4: Simplify right side
    155,976.32x = 18,157,486,843.66
  5. Step 5: Solve for x
    x = 18,157,486,843.66/155,976.32
  6. Step 6: Final answer
    x = 116,411.82

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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.