Home / 218,182.92-301,090.55-122,687.57

Finding the Fourth Proportional to 218,182.92, 301,090.55 and 122,687.57

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Solution

The fourth proportional to 218,182.92, 301,090.55 and 122,687.57 is: 169,307.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,182.92 : 301,090.55 = 122,687.57 : x
  2. Step 2: Convert to fraction form
    218,182.92/301,090.55 = 122,687.57/x
  3. Step 3: Cross multiply
    218,182.92x = 301,090.55 × 122,687.57
  4. Step 4: Simplify right side
    218,182.92x = 36,940,065,810.57
  5. Step 5: Solve for x
    x = 36,940,065,810.57/218,182.92
  6. Step 6: Final answer
    x = 169,307.78

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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.