Home / 155,079.11-214,009.22-87,096.20

Finding the Fourth Proportional to 155,079.11, 214,009.22 and 87,096.20

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Solution

The fourth proportional to 155,079.11, 214,009.22 and 87,096.20 is: 120,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,079.11 : 214,009.22 = 87,096.20 : x
  2. Step 2: Convert to fraction form
    155,079.11/214,009.22 = 87,096.20/x
  3. Step 3: Cross multiply
    155,079.11x = 214,009.22 × 87,096.20
  4. Step 4: Simplify right side
    155,079.11x = 18,639,388,974.66
  5. Step 5: Solve for x
    x = 18,639,388,974.66/155,079.11
  6. Step 6: Final answer
    x = 120,192.78

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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.