Home / 158,761.38-219,093.53-87,148.06

Finding the Fourth Proportional to 158,761.38, 219,093.53 and 87,148.06

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Solution

The fourth proportional to 158,761.38, 219,093.53 and 87,148.06 is: 120,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,761.38 : 219,093.53 = 87,148.06 : x
  2. Step 2: Convert to fraction form
    158,761.38/219,093.53 = 87,148.06/x
  3. Step 3: Cross multiply
    158,761.38x = 219,093.53 × 87,148.06
  4. Step 4: Simplify right side
    158,761.38x = 19,093,575,662.31
  5. Step 5: Solve for x
    x = 19,093,575,662.31/158,761.38
  6. Step 6: Final answer
    x = 120,265.87

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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.