Home / 170,714.30-256,071.45-82,140.80

Finding the Fourth Proportional to 170,714.30, 256,071.45 and 82,140.80

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Solution

The fourth proportional to 170,714.30, 256,071.45 and 82,140.80 is: 123,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,714.30 : 256,071.45 = 82,140.80 : x
  2. Step 2: Convert to fraction form
    170,714.30/256,071.45 = 82,140.80/x
  3. Step 3: Cross multiply
    170,714.30x = 256,071.45 × 82,140.80
  4. Step 4: Simplify right side
    170,714.30x = 21,033,913,760.16
  5. Step 5: Solve for x
    x = 21,033,913,760.16/170,714.30
  6. Step 6: Final answer
    x = 123,211.20

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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.