Home / 135,667.69-187,209.04-75,238.14

Finding the Fourth Proportional to 135,667.69, 187,209.04 and 75,238.14

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Solution

The fourth proportional to 135,667.69, 187,209.04 and 75,238.14 is: 103,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,667.69 : 187,209.04 = 75,238.14 : x
  2. Step 2: Convert to fraction form
    135,667.69/187,209.04 = 75,238.14/x
  3. Step 3: Cross multiply
    135,667.69x = 187,209.04 × 75,238.14
  4. Step 4: Simplify right side
    135,667.69x = 14,085,259,960.79
  5. Step 5: Solve for x
    x = 14,085,259,960.79/135,667.69
  6. Step 6: Final answer
    x = 103,821.77

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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.