Home / 159,143.26-219,612.60-87,523.06

Finding the Fourth Proportional to 159,143.26, 219,612.60 and 87,523.06

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Solution

The fourth proportional to 159,143.26, 219,612.60 and 87,523.06 is: 120,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,143.26 : 219,612.60 = 87,523.06 : x
  2. Step 2: Convert to fraction form
    159,143.26/219,612.60 = 87,523.06/x
  3. Step 3: Cross multiply
    159,143.26x = 219,612.60 × 87,523.06
  4. Step 4: Simplify right side
    159,143.26x = 19,221,166,766.56
  5. Step 5: Solve for x
    x = 19,221,166,766.56/159,143.26
  6. Step 6: Final answer
    x = 120,779.02

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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.