Home / 113,510.11-156,643.98-65,791.14

Finding the Fourth Proportional to 113,510.11, 156,643.98 and 65,791.14

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Solution

The fourth proportional to 113,510.11, 156,643.98 and 65,791.14 is: 90,791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,510.11 : 156,643.98 = 65,791.14 : x
  2. Step 2: Convert to fraction form
    113,510.11/156,643.98 = 65,791.14/x
  3. Step 3: Cross multiply
    113,510.11x = 156,643.98 × 65,791.14
  4. Step 4: Simplify right side
    113,510.11x = 10,305,785,184.21
  5. Step 5: Solve for x
    x = 10,305,785,184.21/113,510.11
  6. Step 6: Final answer
    x = 90,791.78

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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.