Home / 154,416.28-213,099.70-90,753.16

Finding the Fourth Proportional to 154,416.28, 213,099.70 and 90,753.16

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Solution

The fourth proportional to 154,416.28, 213,099.70 and 90,753.16 is: 125,242.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,416.28 : 213,099.70 = 90,753.16 : x
  2. Step 2: Convert to fraction form
    154,416.28/213,099.70 = 90,753.16/x
  3. Step 3: Cross multiply
    154,416.28x = 213,099.70 × 90,753.16
  4. Step 4: Simplify right side
    154,416.28x = 19,339,471,170.05
  5. Step 5: Solve for x
    x = 19,339,471,170.05/154,416.28
  6. Step 6: Final answer
    x = 125,242.44

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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.