Home / 151,331.25-208,837.14-87,705.96

Finding the Fourth Proportional to 151,331.25, 208,837.14 and 87,705.96

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Solution

The fourth proportional to 151,331.25, 208,837.14 and 87,705.96 is: 121,034.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,331.25 : 208,837.14 = 87,705.96 : x
  2. Step 2: Convert to fraction form
    151,331.25/208,837.14 = 87,705.96/x
  3. Step 3: Cross multiply
    151,331.25x = 208,837.14 × 87,705.96
  4. Step 4: Simplify right side
    151,331.25x = 18,316,261,847.35
  5. Step 5: Solve for x
    x = 18,316,261,847.35/151,331.25
  6. Step 6: Final answer
    x = 121,034.23

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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.