Home / 151,349.22-208,886.31-87,723.72

Finding the Fourth Proportional to 151,349.22, 208,886.31 and 87,723.72

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Solution

The fourth proportional to 151,349.22, 208,886.31 and 87,723.72 is: 121,072.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,349.22 : 208,886.31 = 87,723.72 : x
  2. Step 2: Convert to fraction form
    151,349.22/208,886.31 = 87,723.72/x
  3. Step 3: Cross multiply
    151,349.22x = 208,886.31 × 87,723.72
  4. Step 4: Simplify right side
    151,349.22x = 18,324,284,170.27
  5. Step 5: Solve for x
    x = 18,324,284,170.27/151,349.22
  6. Step 6: Final answer
    x = 121,072.87

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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.