Home / 131,356.69-181,272.43-74,768.06

Finding the Fourth Proportional to 131,356.69, 181,272.43 and 74,768.06

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Solution

The fourth proportional to 131,356.69, 181,272.43 and 74,768.06 is: 103,180.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,356.69 : 181,272.43 = 74,768.06 : x
  2. Step 2: Convert to fraction form
    131,356.69/181,272.43 = 74,768.06/x
  3. Step 3: Cross multiply
    131,356.69x = 181,272.43 × 74,768.06
  4. Step 4: Simplify right side
    131,356.69x = 13,553,388,469.23
  5. Step 5: Solve for x
    x = 13,553,388,469.23/131,356.69
  6. Step 6: Final answer
    x = 103,180.04

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1.5x scale

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.