Home / 135,905.64-187,544.63-75,480.17

Finding the Fourth Proportional to 135,905.64, 187,544.63 and 75,480.17

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Solution

The fourth proportional to 135,905.64, 187,544.63 and 75,480.17 is: 104,159.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,905.64 : 187,544.63 = 75,480.17 : x
  2. Step 2: Convert to fraction form
    135,905.64/187,544.63 = 75,480.17/x
  3. Step 3: Cross multiply
    135,905.64x = 187,544.63 × 75,480.17
  4. Step 4: Simplify right side
    135,905.64x = 14,155,900,743.69
  5. Step 5: Solve for x
    x = 14,155,900,743.69/135,905.64
  6. Step 6: Final answer
    x = 104,159.78

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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.