Home / 216,660.98-298,996.26-121,178.18

Finding the Fourth Proportional to 216,660.98, 298,996.26 and 121,178.18

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Solution

The fourth proportional to 216,660.98, 298,996.26 and 121,178.18 is: 167,228.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,660.98 : 298,996.26 = 121,178.18 : x
  2. Step 2: Convert to fraction form
    216,660.98/298,996.26 = 121,178.18/x
  3. Step 3: Cross multiply
    216,660.98x = 298,996.26 × 121,178.18
  4. Step 4: Simplify right side
    216,660.98x = 36,231,822,613.61
  5. Step 5: Solve for x
    x = 36,231,822,613.61/216,660.98
  6. Step 6: Final answer
    x = 167,228.19

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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.