Home / 134,881.78-186,136.88-74,452.45

Finding the Fourth Proportional to 134,881.78, 186,136.88 and 74,452.45

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Solution

The fourth proportional to 134,881.78, 186,136.88 and 74,452.45 is: 102,744.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,881.78 : 186,136.88 = 74,452.45 : x
  2. Step 2: Convert to fraction form
    134,881.78/186,136.88 = 74,452.45/x
  3. Step 3: Cross multiply
    134,881.78x = 186,136.88 × 74,452.45
  4. Step 4: Simplify right side
    134,881.78x = 13,858,346,751.36
  5. Step 5: Solve for x
    x = 13,858,346,751.36/134,881.78
  6. Step 6: Final answer
    x = 102,744.39

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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.