Home / 170,870.26-256,360.22-82,130.20

Finding the Fourth Proportional to 170,870.26, 256,360.22 and 82,130.20

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Solution

The fourth proportional to 170,870.26, 256,360.22 and 82,130.20 is: 123,221.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,870.26 : 256,360.22 = 82,130.20 : x
  2. Step 2: Convert to fraction form
    170,870.26/256,360.22 = 82,130.20/x
  3. Step 3: Cross multiply
    170,870.26x = 256,360.22 × 82,130.20
  4. Step 4: Simplify right side
    170,870.26x = 21,054,916,140.64
  5. Step 5: Solve for x
    x = 21,054,916,140.64/170,870.26
  6. Step 6: Final answer
    x = 123,221.65

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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.