Home / 133,305.28-183,963.04-72,874.96

Finding the Fourth Proportional to 133,305.28, 183,963.04 and 72,874.96

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Solution

The fourth proportional to 133,305.28, 183,963.04 and 72,874.96 is: 100,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,305.28 : 183,963.04 = 72,874.96 : x
  2. Step 2: Convert to fraction form
    133,305.28/183,963.04 = 72,874.96/x
  3. Step 3: Cross multiply
    133,305.28x = 183,963.04 × 72,874.96
  4. Step 4: Simplify right side
    133,305.28x = 13,406,299,181.48
  5. Step 5: Solve for x
    x = 13,406,299,181.48/133,305.28
  6. Step 6: Final answer
    x = 100,568.40

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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.