Home / 154,354.20-213,033.42-90,707.64

Finding the Fourth Proportional to 154,354.20, 213,033.42 and 90,707.64

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Solution

The fourth proportional to 154,354.20, 213,033.42 and 90,707.64 is: 125,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,354.20 : 213,033.42 = 90,707.64 : x
  2. Step 2: Convert to fraction form
    154,354.20/213,033.42 = 90,707.64/x
  3. Step 3: Cross multiply
    154,354.20x = 213,033.42 × 90,707.64
  4. Step 4: Simplify right side
    154,354.20x = 19,323,758,769.33
  5. Step 5: Solve for x
    x = 19,323,758,769.33/154,354.20
  6. Step 6: Final answer
    x = 125,191.01

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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.