Home / 216,531.80-298,820.49-121,042.52

Finding the Fourth Proportional to 216,531.80, 298,820.49 and 121,042.52

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Solution

The fourth proportional to 216,531.80, 298,820.49 and 121,042.52 is: 167,042.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,531.80 : 298,820.49 = 121,042.52 : x
  2. Step 2: Convert to fraction form
    216,531.80/298,820.49 = 121,042.52/x
  3. Step 3: Cross multiply
    216,531.80x = 298,820.49 × 121,042.52
  4. Step 4: Simplify right side
    216,531.80x = 36,169,984,990.66
  5. Step 5: Solve for x
    x = 36,169,984,990.66/216,531.80
  6. Step 6: Final answer
    x = 167,042.37

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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.