Home / 154,402.44-213,127.92-90,759.12

Finding the Fourth Proportional to 154,402.44, 213,127.92 and 90,759.12

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Solution

The fourth proportional to 154,402.44, 213,127.92 and 90,759.12 is: 125,278.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,402.44 : 213,127.92 = 90,759.12 : x
  2. Step 2: Convert to fraction form
    154,402.44/213,127.92 = 90,759.12/x
  3. Step 3: Cross multiply
    154,402.44x = 213,127.92 × 90,759.12
  4. Step 4: Simplify right side
    154,402.44x = 19,343,302,466.63
  5. Step 5: Solve for x
    x = 19,343,302,466.63/154,402.44
  6. Step 6: Final answer
    x = 125,278.48

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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.