Home / 170,842.10-256,263.15-86,861.30

Finding the Fourth Proportional to 170,842.10, 256,263.15 and 86,861.30

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Solution

The fourth proportional to 170,842.10, 256,263.15 and 86,861.30 is: 130,291.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,842.10 : 256,263.15 = 86,861.30 : x
  2. Step 2: Convert to fraction form
    170,842.10/256,263.15 = 86,861.30/x
  3. Step 3: Cross multiply
    170,842.10x = 256,263.15 × 86,861.30
  4. Step 4: Simplify right side
    170,842.10x = 22,259,350,351.10
  5. Step 5: Solve for x
    x = 22,259,350,351.10/170,842.10
  6. Step 6: Final answer
    x = 130,291.95

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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.