Home / 131,992.09-182,152.68-74,640.00

Finding the Fourth Proportional to 131,992.09, 182,152.68 and 74,640.00

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Solution

The fourth proportional to 131,992.09, 182,152.68 and 74,640.00 is: 103,005.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,992.09 : 182,152.68 = 74,640.00 : x
  2. Step 2: Convert to fraction form
    131,992.09/182,152.68 = 74,640.00/x
  3. Step 3: Cross multiply
    131,992.09x = 182,152.68 × 74,640.00
  4. Step 4: Simplify right side
    131,992.09x = 13,595,874,751.24
  5. Step 5: Solve for x
    x = 13,595,874,751.24/131,992.09
  6. Step 6: Final answer
    x = 103,005.22

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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.