Home / 121,883.16-182,750.76-79,712.28

Finding the Fourth Proportional to 121,883.16, 182,750.76 and 79,712.28

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Solution

The fourth proportional to 121,883.16, 182,750.76 and 79,712.28 is: 119,520.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,883.16 : 182,750.76 = 79,712.28 : x
  2. Step 2: Convert to fraction form
    121,883.16/182,750.76 = 79,712.28/x
  3. Step 3: Cross multiply
    121,883.16x = 182,750.76 × 79,712.28
  4. Step 4: Simplify right side
    121,883.16x = 14,567,479,751.33
  5. Step 5: Solve for x
    x = 14,567,479,751.33/121,883.16
  6. Step 6: Final answer
    x = 119,520.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.