Home / 134,905.62-186,169.68-74,476.20

Finding the Fourth Proportional to 134,905.62, 186,169.68 and 74,476.20

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Solution

The fourth proportional to 134,905.62, 186,169.68 and 74,476.20 is: 102,777.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,905.62 : 186,169.68 = 74,476.20 : x
  2. Step 2: Convert to fraction form
    134,905.62/186,169.68 = 74,476.20/x
  3. Step 3: Cross multiply
    134,905.62x = 186,169.68 × 74,476.20
  4. Step 4: Simplify right side
    134,905.62x = 13,865,210,321.62
  5. Step 5: Solve for x
    x = 13,865,210,321.62/134,905.62
  6. Step 6: Final answer
    x = 102,777.11

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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.