Home / 230,639.30-345,956.90-72,867.75

Finding the Fourth Proportional to 230,639.30, 345,956.90 and 72,867.75

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Solution

The fourth proportional to 230,639.30, 345,956.90 and 72,867.75 is: 109,300.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,639.30 : 345,956.90 = 72,867.75 : x
  2. Step 2: Convert to fraction form
    230,639.30/345,956.90 = 72,867.75/x
  3. Step 3: Cross multiply
    230,639.30x = 345,956.90 × 72,867.75
  4. Step 4: Simplify right side
    230,639.30x = 25,209,100,535.64
  5. Step 5: Solve for x
    x = 25,209,100,535.64/230,639.30
  6. Step 6: Final answer
    x = 109,300.97

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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.