Home / 199,543.10-275,297.33-153,616.78

Finding the Fourth Proportional to 199,543.10, 275,297.33 and 153,616.78

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Solution

The fourth proportional to 199,543.10, 275,297.33 and 153,616.78 is: 211,935.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,543.10 : 275,297.33 = 153,616.78 : x
  2. Step 2: Convert to fraction form
    199,543.10/275,297.33 = 153,616.78/x
  3. Step 3: Cross multiply
    199,543.10x = 275,297.33 × 153,616.78
  4. Step 4: Simplify right side
    199,543.10x = 42,290,290,105.36
  5. Step 5: Solve for x
    x = 42,290,290,105.36/199,543.10
  6. Step 6: Final answer
    x = 211,935.62

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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.