Home / 216,534.30-298,823.94-121,045.02

Finding the Fourth Proportional to 216,534.30, 298,823.94 and 121,045.02

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Solution

The fourth proportional to 216,534.30, 298,823.94 and 121,045.02 is: 167,045.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,534.30 : 298,823.94 = 121,045.02 : x
  2. Step 2: Convert to fraction form
    216,534.30/298,823.94 = 121,045.02/x
  3. Step 3: Cross multiply
    216,534.30x = 298,823.94 × 121,045.02
  4. Step 4: Simplify right side
    216,534.30x = 36,171,149,793.78
  5. Step 5: Solve for x
    x = 36,171,149,793.78/216,534.30
  6. Step 6: Final answer
    x = 167,045.82

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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.