Home / 131,848.20-181,769.76-83,426.04

Finding the Fourth Proportional to 131,848.20, 181,769.76 and 83,426.04

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Solution

The fourth proportional to 131,848.20, 181,769.76 and 83,426.04 is: 115,013.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,848.20 : 181,769.76 = 83,426.04 : x
  2. Step 2: Convert to fraction form
    131,848.20/181,769.76 = 83,426.04/x
  3. Step 3: Cross multiply
    131,848.20x = 181,769.76 × 83,426.04
  4. Step 4: Simplify right side
    131,848.20x = 15,164,331,268.55
  5. Step 5: Solve for x
    x = 15,164,331,268.55/131,848.20
  6. Step 6: Final answer
    x = 115,013.56

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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.