Home / 154,947.07-213,833.96-121,354.75

Finding the Fourth Proportional to 154,947.07, 213,833.96 and 121,354.75

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Solution

The fourth proportional to 154,947.07, 213,833.96 and 121,354.75 is: 167,475.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,947.07 : 213,833.96 = 121,354.75 : x
  2. Step 2: Convert to fraction form
    154,947.07/213,833.96 = 121,354.75/x
  3. Step 3: Cross multiply
    154,947.07x = 213,833.96 × 121,354.75
  4. Step 4: Simplify right side
    154,947.07x = 25,949,766,757.31
  5. Step 5: Solve for x
    x = 25,949,766,757.31/154,947.07
  6. Step 6: Final answer
    x = 167,475.04

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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.