Home / 206,432.16-309,424.08-86,566.56

Finding the Fourth Proportional to 206,432.16, 309,424.08 and 86,566.56

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Solution

The fourth proportional to 206,432.16, 309,424.08 and 86,566.56 is: 129,755.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,432.16 : 309,424.08 = 86,566.56 : x
  2. Step 2: Convert to fraction form
    206,432.16/309,424.08 = 86,566.56/x
  3. Step 3: Cross multiply
    206,432.16x = 309,424.08 × 86,566.56
  4. Step 4: Simplify right side
    206,432.16x = 26,785,778,186.76
  5. Step 5: Solve for x
    x = 26,785,778,186.76/206,432.16
  6. Step 6: Final answer
    x = 129,755.84

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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.