Home / 133,159.78-183,760.52-76,571.16

Finding the Fourth Proportional to 133,159.78, 183,760.52 and 76,571.16

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Solution

The fourth proportional to 133,159.78, 183,760.52 and 76,571.16 is: 105,668.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,159.78 : 183,760.52 = 76,571.16 : x
  2. Step 2: Convert to fraction form
    133,159.78/183,760.52 = 76,571.16/x
  3. Step 3: Cross multiply
    133,159.78x = 183,760.52 × 76,571.16
  4. Step 4: Simplify right side
    133,159.78x = 14,070,755,106.65
  5. Step 5: Solve for x
    x = 14,070,755,106.65/133,159.78
  6. Step 6: Final answer
    x = 105,668.21

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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.