Home / 112,825.20-155,769.68-72,609.01

Finding the Fourth Proportional to 112,825.20, 155,769.68 and 72,609.01

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Solution

The fourth proportional to 112,825.20, 155,769.68 and 72,609.01 is: 100,246.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,825.20 : 155,769.68 = 72,609.01 : x
  2. Step 2: Convert to fraction form
    112,825.20/155,769.68 = 72,609.01/x
  3. Step 3: Cross multiply
    112,825.20x = 155,769.68 × 72,609.01
  4. Step 4: Simplify right side
    112,825.20x = 11,310,282,044.92
  5. Step 5: Solve for x
    x = 11,310,282,044.92/112,825.20
  6. Step 6: Final answer
    x = 100,246.06

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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.