Home / 198,655.04-274,135.04-112,612.79

Finding the Fourth Proportional to 198,655.04, 274,135.04 and 112,612.79

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Solution

The fourth proportional to 198,655.04, 274,135.04 and 112,612.79 is: 155,400.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,655.04 : 274,135.04 = 112,612.79 : x
  2. Step 2: Convert to fraction form
    198,655.04/274,135.04 = 112,612.79/x
  3. Step 3: Cross multiply
    198,655.04x = 274,135.04 × 112,612.79
  4. Step 4: Simplify right side
    198,655.04x = 30,871,109,757.42
  5. Step 5: Solve for x
    x = 30,871,109,757.42/198,655.04
  6. Step 6: Final answer
    x = 155,400.59

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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.