Home / 134,802.78-186,029.22-74,375.52

Finding the Fourth Proportional to 134,802.78, 186,029.22 and 74,375.52

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Solution

The fourth proportional to 134,802.78, 186,029.22 and 74,375.52 is: 102,638.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,802.78 : 186,029.22 = 74,375.52 : x
  2. Step 2: Convert to fraction form
    134,802.78/186,029.22 = 74,375.52/x
  3. Step 3: Cross multiply
    134,802.78x = 186,029.22 × 74,375.52
  4. Step 4: Simplify right side
    134,802.78x = 13,836,019,972.69
  5. Step 5: Solve for x
    x = 13,836,019,972.69/134,802.78
  6. Step 6: Final answer
    x = 102,638.98

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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.