Home / 156,122.67-215,459.69-88,115.49

Finding the Fourth Proportional to 156,122.67, 215,459.69 and 88,115.49

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Solution

The fourth proportional to 156,122.67, 215,459.69 and 88,115.49 is: 121,605.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,122.67 : 215,459.69 = 88,115.49 : x
  2. Step 2: Convert to fraction form
    156,122.67/215,459.69 = 88,115.49/x
  3. Step 3: Cross multiply
    156,122.67x = 215,459.69 × 88,115.49
  4. Step 4: Simplify right side
    156,122.67x = 18,985,335,719.02
  5. Step 5: Solve for x
    x = 18,985,335,719.02/156,122.67
  6. Step 6: Final answer
    x = 121,605.25

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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.