Home / 218,144.68-301,043.40-121,356.26

Finding the Fourth Proportional to 218,144.68, 301,043.40 and 121,356.26

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Solution

The fourth proportional to 218,144.68, 301,043.40 and 121,356.26 is: 167,473.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,144.68 : 301,043.40 = 121,356.26 : x
  2. Step 2: Convert to fraction form
    218,144.68/301,043.40 = 121,356.26/x
  3. Step 3: Cross multiply
    218,144.68x = 301,043.40 × 121,356.26
  4. Step 4: Simplify right side
    218,144.68x = 36,533,501,121.68
  5. Step 5: Solve for x
    x = 36,533,501,121.68/218,144.68
  6. Step 6: Final answer
    x = 167,473.72

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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.