Home / 154,627.91-213,382.89-90,969.80

Finding the Fourth Proportional to 154,627.91, 213,382.89 and 90,969.80

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Solution

The fourth proportional to 154,627.91, 213,382.89 and 90,969.80 is: 125,536.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,627.91 : 213,382.89 = 90,969.80 : x
  2. Step 2: Convert to fraction form
    154,627.91/213,382.89 = 90,969.80/x
  3. Step 3: Cross multiply
    154,627.91x = 213,382.89 × 90,969.80
  4. Step 4: Simplify right side
    154,627.91x = 19,411,397,759.81
  5. Step 5: Solve for x
    x = 19,411,397,759.81/154,627.91
  6. Step 6: Final answer
    x = 125,536.19

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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.