Home / 206,006.10-308,888.85-87,616.50

Finding the Fourth Proportional to 206,006.10, 308,888.85 and 87,616.50

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Solution

The fourth proportional to 206,006.10, 308,888.85 and 87,616.50 is: 131,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,006.10 : 308,888.85 = 87,616.50 : x
  2. Step 2: Convert to fraction form
    206,006.10/308,888.85 = 87,616.50/x
  3. Step 3: Cross multiply
    206,006.10x = 308,888.85 × 87,616.50
  4. Step 4: Simplify right side
    206,006.10x = 27,063,759,926.03
  5. Step 5: Solve for x
    x = 27,063,759,926.03/206,006.10
  6. Step 6: Final answer
    x = 131,373.59

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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.