Home / 135,123.04-186,469.86-75,507.04

Finding the Fourth Proportional to 135,123.04, 186,469.86 and 75,507.04

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Solution

The fourth proportional to 135,123.04, 186,469.86 and 75,507.04 is: 104,199.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,123.04 : 186,469.86 = 75,507.04 : x
  2. Step 2: Convert to fraction form
    135,123.04/186,469.86 = 75,507.04/x
  3. Step 3: Cross multiply
    135,123.04x = 186,469.86 × 75,507.04
  4. Step 4: Simplify right side
    135,123.04x = 14,079,787,177.81
  5. Step 5: Solve for x
    x = 14,079,787,177.81/135,123.04
  6. Step 6: Final answer
    x = 104,199.75

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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.