Home / 135,824.43-187,428.83-75,392.13

Finding the Fourth Proportional to 135,824.43, 187,428.83 and 75,392.13

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Solution

The fourth proportional to 135,824.43, 187,428.83 and 75,392.13 is: 104,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,824.43 : 187,428.83 = 75,392.13 : x
  2. Step 2: Convert to fraction form
    135,824.43/187,428.83 = 75,392.13/x
  3. Step 3: Cross multiply
    135,824.43x = 187,428.83 × 75,392.13
  4. Step 4: Simplify right side
    135,824.43x = 14,130,658,340.15
  5. Step 5: Solve for x
    x = 14,130,658,340.15/135,824.43
  6. Step 6: Final answer
    x = 104,036.21

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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.