Home / 154,948.31-213,954.71-126,272.18

Finding the Fourth Proportional to 154,948.31, 213,954.71 and 126,272.18

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Solution

The fourth proportional to 154,948.31, 213,954.71 and 126,272.18 is: 174,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,948.31 : 213,954.71 = 126,272.18 : x
  2. Step 2: Convert to fraction form
    154,948.31/213,954.71 = 126,272.18/x
  3. Step 3: Cross multiply
    154,948.31x = 213,954.71 × 126,272.18
  4. Step 4: Simplify right side
    154,948.31x = 27,016,527,652.97
  5. Step 5: Solve for x
    x = 27,016,527,652.97/154,948.31
  6. Step 6: Final answer
    x = 174,358.32

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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.