Home / 156,079.12-215,388.24-88,118.14

Finding the Fourth Proportional to 156,079.12, 215,388.24 and 88,118.14

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Solution

The fourth proportional to 156,079.12, 215,388.24 and 88,118.14 is: 121,602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,079.12 : 215,388.24 = 88,118.14 : x
  2. Step 2: Convert to fraction form
    156,079.12/215,388.24 = 88,118.14/x
  3. Step 3: Cross multiply
    156,079.12x = 215,388.24 × 88,118.14
  4. Step 4: Simplify right side
    156,079.12x = 18,979,611,086.67
  5. Step 5: Solve for x
    x = 18,979,611,086.67/156,079.12
  6. Step 6: Final answer
    x = 121,602.50

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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.