Home / 170,623.40-256,092.17-86,442.12

Finding the Fourth Proportional to 170,623.40, 256,092.17 and 86,442.12

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Solution

The fourth proportional to 170,623.40, 256,092.17 and 86,442.12 is: 129,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,623.40 : 256,092.17 = 86,442.12 : x
  2. Step 2: Convert to fraction form
    170,623.40/256,092.17 = 86,442.12/x
  3. Step 3: Cross multiply
    170,623.40x = 256,092.17 × 86,442.12
  4. Step 4: Simplify right side
    170,623.40x = 22,137,149,657.99
  5. Step 5: Solve for x
    x = 22,137,149,657.99/170,623.40
  6. Step 6: Final answer
    x = 129,742.76

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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.