Home / 199,285.96-275,006.10-108,639.76

Finding the Fourth Proportional to 199,285.96, 275,006.10 and 108,639.76

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Solution

The fourth proportional to 199,285.96, 275,006.10 and 108,639.76 is: 149,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,285.96 : 275,006.10 = 108,639.76 : x
  2. Step 2: Convert to fraction form
    199,285.96/275,006.10 = 108,639.76/x
  3. Step 3: Cross multiply
    199,285.96x = 275,006.10 × 108,639.76
  4. Step 4: Simplify right side
    199,285.96x = 29,876,596,702.54
  5. Step 5: Solve for x
    x = 29,876,596,702.54/199,285.96
  6. Step 6: Final answer
    x = 149,918.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.