Home / 171,320.20-257,190.90-108,140.20

Finding the Fourth Proportional to 171,320.20, 257,190.90 and 108,140.20

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Solution

The fourth proportional to 171,320.20, 257,190.90 and 108,140.20 is: 162,343.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,320.20 : 257,190.90 = 108,140.20 : x
  2. Step 2: Convert to fraction form
    171,320.20/257,190.90 = 108,140.20/x
  3. Step 3: Cross multiply
    171,320.20x = 257,190.90 × 108,140.20
  4. Step 4: Simplify right side
    171,320.20x = 27,812,675,364.18
  5. Step 5: Solve for x
    x = 27,812,675,364.18/171,320.20
  6. Step 6: Final answer
    x = 162,343.23

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1.5x scale

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.