Home / 133,721.10-200,581.65-112,725.90

Finding the Fourth Proportional to 133,721.10, 200,581.65 and 112,725.90

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Solution

The fourth proportional to 133,721.10, 200,581.65 and 112,725.90 is: 169,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,721.10 : 200,581.65 = 112,725.90 : x
  2. Step 2: Convert to fraction form
    133,721.10/200,581.65 = 112,725.90/x
  3. Step 3: Cross multiply
    133,721.10x = 200,581.65 × 112,725.90
  4. Step 4: Simplify right side
    133,721.10x = 22,610,747,019.74
  5. Step 5: Solve for x
    x = 22,610,747,019.74/133,721.10
  6. Step 6: Final answer
    x = 169,088.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.