Home / 218,184.75-301,096.71-121,390.02

Finding the Fourth Proportional to 218,184.75, 301,096.71 and 121,390.02

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Solution

The fourth proportional to 218,184.75, 301,096.71 and 121,390.02 is: 167,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,184.75 : 301,096.71 = 121,390.02 : x
  2. Step 2: Convert to fraction form
    218,184.75/301,096.71 = 121,390.02/x
  3. Step 3: Cross multiply
    218,184.75x = 301,096.71 × 121,390.02
  4. Step 4: Simplify right side
    218,184.75x = 36,550,135,648.83
  5. Step 5: Solve for x
    x = 36,550,135,648.83/218,184.75
  6. Step 6: Final answer
    x = 167,519.20

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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.