Home / 155,696.28-214,861.52-87,714.07

Finding the Fourth Proportional to 155,696.28, 214,861.52 and 87,714.07

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Solution

The fourth proportional to 155,696.28, 214,861.52 and 87,714.07 is: 121,045.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,696.28 : 214,861.52 = 87,714.07 : x
  2. Step 2: Convert to fraction form
    155,696.28/214,861.52 = 87,714.07/x
  3. Step 3: Cross multiply
    155,696.28x = 214,861.52 × 87,714.07
  4. Step 4: Simplify right side
    155,696.28x = 18,846,378,087.72
  5. Step 5: Solve for x
    x = 18,846,378,087.72/155,696.28
  6. Step 6: Final answer
    x = 121,045.78

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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.