Home / 199,888.46-275,819.49-128,365.35

Finding the Fourth Proportional to 199,888.46, 275,819.49 and 128,365.35

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Solution

The fourth proportional to 199,888.46, 275,819.49 and 128,365.35 is: 177,127.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,888.46 : 275,819.49 = 128,365.35 : x
  2. Step 2: Convert to fraction form
    199,888.46/275,819.49 = 128,365.35/x
  3. Step 3: Cross multiply
    199,888.46x = 275,819.49 × 128,365.35
  4. Step 4: Simplify right side
    199,888.46x = 35,405,665,370.67
  5. Step 5: Solve for x
    x = 35,405,665,370.67/199,888.46
  6. Step 6: Final answer
    x = 177,127.12

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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.