Home / 134,972.87-186,258.99-74,542.22

Finding the Fourth Proportional to 134,972.87, 186,258.99 and 74,542.22

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Solution

The fourth proportional to 134,972.87, 186,258.99 and 74,542.22 is: 102,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,972.87 : 186,258.99 = 74,542.22 : x
  2. Step 2: Convert to fraction form
    134,972.87/186,258.99 = 74,542.22/x
  3. Step 3: Cross multiply
    134,972.87x = 186,258.99 × 74,542.22
  4. Step 4: Simplify right side
    134,972.87x = 13,884,157,678.26
  5. Step 5: Solve for x
    x = 13,884,157,678.26/134,972.87
  6. Step 6: Final answer
    x = 102,866.29

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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.