Home / 154,396.44-213,119.64-90,753.12

Finding the Fourth Proportional to 154,396.44, 213,119.64 and 90,753.12

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Solution

The fourth proportional to 154,396.44, 213,119.64 and 90,753.12 is: 125,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,396.44 : 213,119.64 = 90,753.12 : x
  2. Step 2: Convert to fraction form
    154,396.44/213,119.64 = 90,753.12/x
  3. Step 3: Cross multiply
    154,396.44x = 213,119.64 × 90,753.12
  4. Step 4: Simplify right side
    154,396.44x = 19,341,272,263.28
  5. Step 5: Solve for x
    x = 19,341,272,263.28/154,396.44
  6. Step 6: Final answer
    x = 125,270.20

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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.