Home / 199,401.12-275,017.94-127,787.80

Finding the Fourth Proportional to 199,401.12, 275,017.94 and 127,787.80

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Solution

The fourth proportional to 199,401.12, 275,017.94 and 127,787.80 is: 176,247.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,401.12 : 275,017.94 = 127,787.80 : x
  2. Step 2: Convert to fraction form
    199,401.12/275,017.94 = 127,787.80/x
  3. Step 3: Cross multiply
    199,401.12x = 275,017.94 × 127,787.80
  4. Step 4: Simplify right side
    199,401.12x = 35,143,937,513.13
  5. Step 5: Solve for x
    x = 35,143,937,513.13/199,401.12
  6. Step 6: Final answer
    x = 176,247.44

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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.