Home / 156,069.09-215,374.46-88,108.11

Finding the Fourth Proportional to 156,069.09, 215,374.46 and 88,108.11

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Solution

The fourth proportional to 156,069.09, 215,374.46 and 88,108.11 is: 121,588.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,069.09 : 215,374.46 = 88,108.11 : x
  2. Step 2: Convert to fraction form
    156,069.09/215,374.46 = 88,108.11/x
  3. Step 3: Cross multiply
    156,069.09x = 215,374.46 × 88,108.11
  4. Step 4: Simplify right side
    156,069.09x = 18,976,236,172.33
  5. Step 5: Solve for x
    x = 18,976,236,172.33/156,069.09
  6. Step 6: Final answer
    x = 121,588.69

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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.