Home / 134,880.78-186,133.14-74,451.36

Finding the Fourth Proportional to 134,880.78, 186,133.14 and 74,451.36

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Solution

The fourth proportional to 134,880.78, 186,133.14 and 74,451.36 is: 102,741.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,880.78 : 186,133.14 = 74,451.36 : x
  2. Step 2: Convert to fraction form
    134,880.78/186,133.14 = 74,451.36/x
  3. Step 3: Cross multiply
    134,880.78x = 186,133.14 × 74,451.36
  4. Step 4: Simplify right side
    134,880.78x = 13,857,865,414.07
  5. Step 5: Solve for x
    x = 13,857,865,414.07/134,880.78
  6. Step 6: Final answer
    x = 102,741.59

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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.