Home / 92,857.46-139,478.15-75,107.93

Finding the Fourth Proportional to 92,857.46, 139,478.15 and 75,107.93

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Solution

The fourth proportional to 92,857.46, 139,478.15 and 75,107.93 is: 112,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,857.46 : 139,478.15 = 75,107.93 : x
  2. Step 2: Convert to fraction form
    92,857.46/139,478.15 = 75,107.93/x
  3. Step 3: Cross multiply
    92,857.46x = 139,478.15 × 75,107.93
  4. Step 4: Simplify right side
    92,857.46x = 10,475,914,617.11
  5. Step 5: Solve for x
    x = 10,475,914,617.11/92,857.46
  6. Step 6: Final answer
    x = 112,817.16

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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.