Home / 189,667.95-261,734.03-103,629.92

Finding the Fourth Proportional to 189,667.95, 261,734.03 and 103,629.92

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Solution

The fourth proportional to 189,667.95, 261,734.03 and 103,629.92 is: 143,005.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,667.95 : 261,734.03 = 103,629.92 : x
  2. Step 2: Convert to fraction form
    189,667.95/261,734.03 = 103,629.92/x
  3. Step 3: Cross multiply
    189,667.95x = 261,734.03 × 103,629.92
  4. Step 4: Simplify right side
    189,667.95x = 27,123,474,763.36
  5. Step 5: Solve for x
    x = 27,123,474,763.36/189,667.95
  6. Step 6: Final answer
    x = 143,005.05

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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.