Home / 218,660.24-301,766.56-121,870.24

Finding the Fourth Proportional to 218,660.24, 301,766.56 and 121,870.24

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Solution

The fourth proportional to 218,660.24, 301,766.56 and 121,870.24 is: 168,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,660.24 : 301,766.56 = 121,870.24 : x
  2. Step 2: Convert to fraction form
    218,660.24/301,766.56 = 121,870.24/x
  3. Step 3: Cross multiply
    218,660.24x = 301,766.56 × 121,870.24
  4. Step 4: Simplify right side
    218,660.24x = 36,776,363,091.17
  5. Step 5: Solve for x
    x = 36,776,363,091.17/218,660.24
  6. Step 6: Final answer
    x = 168,189.53

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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.