Home / 159,595.06-220,231.29-87,971.38

Finding the Fourth Proportional to 159,595.06, 220,231.29 and 87,971.38

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Solution

The fourth proportional to 159,595.06, 220,231.29 and 87,971.38 is: 121,395.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,595.06 : 220,231.29 = 87,971.38 : x
  2. Step 2: Convert to fraction form
    159,595.06/220,231.29 = 87,971.38/x
  3. Step 3: Cross multiply
    159,595.06x = 220,231.29 × 87,971.38
  4. Step 4: Simplify right side
    159,595.06x = 19,374,050,500.48
  5. Step 5: Solve for x
    x = 19,374,050,500.48/159,595.06
  6. Step 6: Final answer
    x = 121,395.05

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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.