Home / 206,166.12-308,957.55-87,718.20

Finding the Fourth Proportional to 206,166.12, 308,957.55 and 87,718.20

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Solution

The fourth proportional to 206,166.12, 308,957.55 and 87,718.20 is: 131,453.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,166.12 : 308,957.55 = 87,718.20 : x
  2. Step 2: Convert to fraction form
    206,166.12/308,957.55 = 87,718.20/x
  3. Step 3: Cross multiply
    206,166.12x = 308,957.55 × 87,718.20
  4. Step 4: Simplify right side
    206,166.12x = 27,101,200,162.41
  5. Step 5: Solve for x
    x = 27,101,200,162.41/206,166.12
  6. Step 6: Final answer
    x = 131,453.22

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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.