Home / 198,822.84-298,142.10-74,130.36

Finding the Fourth Proportional to 198,822.84, 298,142.10 and 74,130.36

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Solution

The fourth proportional to 198,822.84, 298,142.10 and 74,130.36 is: 111,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,822.84 : 298,142.10 = 74,130.36 : x
  2. Step 2: Convert to fraction form
    198,822.84/298,142.10 = 74,130.36/x
  3. Step 3: Cross multiply
    198,822.84x = 298,142.10 × 74,130.36
  4. Step 4: Simplify right side
    198,822.84x = 22,101,381,204.16
  5. Step 5: Solve for x
    x = 22,101,381,204.16/198,822.84
  6. Step 6: Final answer
    x = 111,161.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.