Home / 198,742.11-274,263.90-113,859.51

Finding the Fourth Proportional to 198,742.11, 274,263.90 and 113,859.51

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Solution

The fourth proportional to 198,742.11, 274,263.90 and 113,859.51 is: 157,126.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,742.11 : 274,263.90 = 113,859.51 : x
  2. Step 2: Convert to fraction form
    198,742.11/274,263.90 = 113,859.51/x
  3. Step 3: Cross multiply
    198,742.11x = 274,263.90 × 113,859.51
  4. Step 4: Simplify right side
    198,742.11x = 31,227,553,264.69
  5. Step 5: Solve for x
    x = 31,227,553,264.69/198,742.11
  6. Step 6: Final answer
    x = 157,126.00

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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.