Home / 223,535.15-308,480.57-121,561.58

Finding the Fourth Proportional to 223,535.15, 308,480.57 and 121,561.58

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Solution

The fourth proportional to 223,535.15, 308,480.57 and 121,561.58 is: 167,756.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,535.15 : 308,480.57 = 121,561.58 : x
  2. Step 2: Convert to fraction form
    223,535.15/308,480.57 = 121,561.58/x
  3. Step 3: Cross multiply
    223,535.15x = 308,480.57 × 121,561.58
  4. Step 4: Simplify right side
    223,535.15x = 37,499,383,338.29
  5. Step 5: Solve for x
    x = 37,499,383,338.29/223,535.15
  6. Step 6: Final answer
    x = 167,756.10

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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.