Home / 216,664.98-299,001.78-121,182.18

Finding the Fourth Proportional to 216,664.98, 299,001.78 and 121,182.18

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Solution

The fourth proportional to 216,664.98, 299,001.78 and 121,182.18 is: 167,233.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,664.98 : 299,001.78 = 121,182.18 : x
  2. Step 2: Convert to fraction form
    216,664.98/299,001.78 = 121,182.18/x
  3. Step 3: Cross multiply
    216,664.98x = 299,001.78 × 121,182.18
  4. Step 4: Simplify right side
    216,664.98x = 36,233,687,524.28
  5. Step 5: Solve for x
    x = 36,233,687,524.28/216,664.98
  6. Step 6: Final answer
    x = 167,233.71

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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.