Home / 134,799.40-186,021.40-74,372.60

Finding the Fourth Proportional to 134,799.40, 186,021.40 and 74,372.60

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Solution

The fourth proportional to 134,799.40, 186,021.40 and 74,372.60 is: 102,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,799.40 : 186,021.40 = 74,372.60 : x
  2. Step 2: Convert to fraction form
    134,799.40/186,021.40 = 74,372.60/x
  3. Step 3: Cross multiply
    134,799.40x = 186,021.40 × 74,372.60
  4. Step 4: Simplify right side
    134,799.40x = 13,834,895,173.64
  5. Step 5: Solve for x
    x = 13,834,895,173.64/134,799.40
  6. Step 6: Final answer
    x = 102,633.21

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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.