Home / 151,099.12-208,523.85-87,424.61

Finding the Fourth Proportional to 151,099.12, 208,523.85 and 87,424.61

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Solution

The fourth proportional to 151,099.12, 208,523.85 and 87,424.61 is: 120,650.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,099.12 : 208,523.85 = 87,424.61 : x
  2. Step 2: Convert to fraction form
    151,099.12/208,523.85 = 87,424.61/x
  3. Step 3: Cross multiply
    151,099.12x = 208,523.85 × 87,424.61
  4. Step 4: Simplify right side
    151,099.12x = 18,230,116,261.95
  5. Step 5: Solve for x
    x = 18,230,116,261.95/151,099.12
  6. Step 6: Final answer
    x = 120,650.05

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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.