Home / 154,417.40-231,626.10-109,316.60

Finding the Fourth Proportional to 154,417.40, 231,626.10 and 109,316.60

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Solution

The fourth proportional to 154,417.40, 231,626.10 and 109,316.60 is: 163,974.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,417.40 : 231,626.10 = 109,316.60 : x
  2. Step 2: Convert to fraction form
    154,417.40/231,626.10 = 109,316.60/x
  3. Step 3: Cross multiply
    154,417.40x = 231,626.10 × 109,316.60
  4. Step 4: Simplify right side
    154,417.40x = 25,320,577,723.26
  5. Step 5: Solve for x
    x = 25,320,577,723.26/154,417.40
  6. Step 6: Final answer
    x = 163,974.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.