Home / 156,073.20-215,381.78-88,093.05

Finding the Fourth Proportional to 156,073.20, 215,381.78 and 88,093.05

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Solution

The fourth proportional to 156,073.20, 215,381.78 and 88,093.05 is: 121,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,073.20 : 215,381.78 = 88,093.05 : x
  2. Step 2: Convert to fraction form
    156,073.20/215,381.78 = 88,093.05/x
  3. Step 3: Cross multiply
    156,073.20x = 215,381.78 × 88,093.05
  4. Step 4: Simplify right side
    156,073.20x = 18,973,637,474.16
  5. Step 5: Solve for x
    x = 18,973,637,474.16/156,073.20
  6. Step 6: Final answer
    x = 121,568.84

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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.