Home / 216,456.18-298,708.65-120,962.85

Finding the Fourth Proportional to 216,456.18, 298,708.65 and 120,962.85

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Solution

The fourth proportional to 216,456.18, 298,708.65 and 120,962.85 is: 166,928.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,456.18 : 298,708.65 = 120,962.85 : x
  2. Step 2: Convert to fraction form
    216,456.18/298,708.65 = 120,962.85/x
  3. Step 3: Cross multiply
    216,456.18x = 298,708.65 × 120,962.85
  4. Step 4: Simplify right side
    216,456.18x = 36,132,649,623.65
  5. Step 5: Solve for x
    x = 36,132,649,623.65/216,456.18
  6. Step 6: Final answer
    x = 166,928.24

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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.