Home / 99,191.71-148,533.22-54,769.15

Finding the Fourth Proportional to 99,191.71, 148,533.22 and 54,769.15

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Solution

The fourth proportional to 99,191.71, 148,533.22 and 54,769.15 is: 82,013.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,191.71 : 148,533.22 = 54,769.15 : x
  2. Step 2: Convert to fraction form
    99,191.71/148,533.22 = 54,769.15/x
  3. Step 3: Cross multiply
    99,191.71x = 148,533.22 × 54,769.15
  4. Step 4: Simplify right side
    99,191.71x = 8,135,038,206.16
  5. Step 5: Solve for x
    x = 8,135,038,206.16/99,191.71
  6. Step 6: Final answer
    x = 82,013.29

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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.