Home / 216,534.89-298,824.77-121,045.61

Finding the Fourth Proportional to 216,534.89, 298,824.77 and 121,045.61

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Solution

The fourth proportional to 216,534.89, 298,824.77 and 121,045.61 is: 167,046.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,534.89 : 298,824.77 = 121,045.61 : x
  2. Step 2: Convert to fraction form
    216,534.89/298,824.77 = 121,045.61/x
  3. Step 3: Cross multiply
    216,534.89x = 298,824.77 × 121,045.61
  4. Step 4: Simplify right side
    216,534.89x = 36,171,427,617.44
  5. Step 5: Solve for x
    x = 36,171,427,617.44/216,534.89
  6. Step 6: Final answer
    x = 167,046.65

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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.