Home / 218,186.76-301,099.48-121,392.02

Finding the Fourth Proportional to 218,186.76, 301,099.48 and 121,392.02

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Solution

The fourth proportional to 218,186.76, 301,099.48 and 121,392.02 is: 167,521.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,186.76 : 301,099.48 = 121,392.02 : x
  2. Step 2: Convert to fraction form
    218,186.76/301,099.48 = 121,392.02/x
  3. Step 3: Cross multiply
    218,186.76x = 301,099.48 × 121,392.02
  4. Step 4: Simplify right side
    218,186.76x = 36,551,074,098.15
  5. Step 5: Solve for x
    x = 36,551,074,098.15/218,186.76
  6. Step 6: Final answer
    x = 167,521.96

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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.