Home / 133,235.79-183,865.39-71,981.97

Finding the Fourth Proportional to 133,235.79, 183,865.39 and 71,981.97

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Solution

The fourth proportional to 133,235.79, 183,865.39 and 71,981.97 is: 99,335.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,235.79 : 183,865.39 = 71,981.97 : x
  2. Step 2: Convert to fraction form
    133,235.79/183,865.39 = 71,981.97/x
  3. Step 3: Cross multiply
    133,235.79x = 183,865.39 × 71,981.97
  4. Step 4: Simplify right side
    133,235.79x = 13,234,992,522.47
  5. Step 5: Solve for x
    x = 13,234,992,522.47/133,235.79
  6. Step 6: Final answer
    x = 99,335.12

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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.