Home / 216,605.82-298,915.04-121,112.52

Finding the Fourth Proportional to 216,605.82, 298,915.04 and 121,112.52

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Solution

The fourth proportional to 216,605.82, 298,915.04 and 121,112.52 is: 167,134.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,605.82 : 298,915.04 = 121,112.52 : x
  2. Step 2: Convert to fraction form
    216,605.82/298,915.04 = 121,112.52/x
  3. Step 3: Cross multiply
    216,605.82x = 298,915.04 × 121,112.52
  4. Step 4: Simplify right side
    216,605.82x = 36,202,353,760.30
  5. Step 5: Solve for x
    x = 36,202,353,760.30/216,605.82
  6. Step 6: Final answer
    x = 167,134.72

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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.