Home / 99,141.36-136,769.76-68,998.56

Finding the Fourth Proportional to 99,141.36, 136,769.76 and 68,998.56

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Solution

The fourth proportional to 99,141.36, 136,769.76 and 68,998.56 is: 95,186.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,141.36 : 136,769.76 = 68,998.56 : x
  2. Step 2: Convert to fraction form
    99,141.36/136,769.76 = 68,998.56/x
  3. Step 3: Cross multiply
    99,141.36x = 136,769.76 × 68,998.56
  4. Step 4: Simplify right side
    99,141.36x = 9,436,916,491.55
  5. Step 5: Solve for x
    x = 9,436,916,491.55/99,141.36
  6. Step 6: Final answer
    x = 95,186.47

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1.5x scale

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.