Home / 144,131.91-198,903.51-79,602.75

Finding the Fourth Proportional to 144,131.91, 198,903.51 and 79,602.75

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Solution

The fourth proportional to 144,131.91, 198,903.51 and 79,602.75 is: 109,852.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,131.91 : 198,903.51 = 79,602.75 : x
  2. Step 2: Convert to fraction form
    144,131.91/198,903.51 = 79,602.75/x
  3. Step 3: Cross multiply
    144,131.91x = 198,903.51 × 79,602.75
  4. Step 4: Simplify right side
    144,131.91x = 15,833,266,380.65
  5. Step 5: Solve for x
    x = 15,833,266,380.65/144,131.91
  6. Step 6: Final answer
    x = 109,852.61

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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.