Home / 143,722.31-198,342.90-80,060.13

Finding the Fourth Proportional to 143,722.31, 198,342.90 and 80,060.13

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Solution

The fourth proportional to 143,722.31, 198,342.90 and 80,060.13 is: 110,486.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,722.31 : 198,342.90 = 80,060.13 : x
  2. Step 2: Convert to fraction form
    143,722.31/198,342.90 = 80,060.13/x
  3. Step 3: Cross multiply
    143,722.31x = 198,342.90 × 80,060.13
  4. Step 4: Simplify right side
    143,722.31x = 15,879,358,358.58
  5. Step 5: Solve for x
    x = 15,879,358,358.58/143,722.31
  6. Step 6: Final answer
    x = 110,486.39

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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.