Home / 135,869.60-187,480.07-75,440.77

Finding the Fourth Proportional to 135,869.60, 187,480.07 and 75,440.77

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Solution

The fourth proportional to 135,869.60, 187,480.07 and 75,440.77 is: 104,097.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,869.60 : 187,480.07 = 75,440.77 : x
  2. Step 2: Convert to fraction form
    135,869.60/187,480.07 = 75,440.77/x
  3. Step 3: Cross multiply
    135,869.60x = 187,480.07 × 75,440.77
  4. Step 4: Simplify right side
    135,869.60x = 14,143,640,277.45
  5. Step 5: Solve for x
    x = 14,143,640,277.45/135,869.60
  6. Step 6: Final answer
    x = 104,097.16

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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.