Home / 135,667.40-187,208.76-75,237.92

Finding the Fourth Proportional to 135,667.40, 187,208.76 and 75,237.92

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Solution

The fourth proportional to 135,667.40, 187,208.76 and 75,237.92 is: 103,821.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,667.40 : 187,208.76 = 75,237.92 : x
  2. Step 2: Convert to fraction form
    135,667.40/187,208.76 = 75,237.92/x
  3. Step 3: Cross multiply
    135,667.40x = 187,208.76 × 75,237.92
  4. Step 4: Simplify right side
    135,667.40x = 14,085,197,708.18
  5. Step 5: Solve for x
    x = 14,085,197,708.18/135,667.40
  6. Step 6: Final answer
    x = 103,821.53

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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.