Home / 155,446.32-214,520.76-88,382.64

Finding the Fourth Proportional to 155,446.32, 214,520.76 and 88,382.64

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Solution

The fourth proportional to 155,446.32, 214,520.76 and 88,382.64 is: 121,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,446.32 : 214,520.76 = 88,382.64 : x
  2. Step 2: Convert to fraction form
    155,446.32/214,520.76 = 88,382.64/x
  3. Step 3: Cross multiply
    155,446.32x = 214,520.76 × 88,382.64
  4. Step 4: Simplify right side
    155,446.32x = 18,959,911,103.61
  5. Step 5: Solve for x
    x = 18,959,911,103.61/155,446.32
  6. Step 6: Final answer
    x = 121,970.79

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1.5x scale

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.