Home / 134,918.48-186,179.36-74,487.60

Finding the Fourth Proportional to 134,918.48, 186,179.36 and 74,487.60

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Solution

The fourth proportional to 134,918.48, 186,179.36 and 74,487.60 is: 102,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,918.48 : 186,179.36 = 74,487.60 : x
  2. Step 2: Convert to fraction form
    134,918.48/186,179.36 = 74,487.60/x
  3. Step 3: Cross multiply
    134,918.48x = 186,179.36 × 74,487.60
  4. Step 4: Simplify right side
    134,918.48x = 13,868,053,695.94
  5. Step 5: Solve for x
    x = 13,868,053,695.94/134,918.48
  6. Step 6: Final answer
    x = 102,788.39

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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.