Home / 140,669.26-194,128.38-77,007.11

Finding the Fourth Proportional to 140,669.26, 194,128.38 and 77,007.11

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Solution

The fourth proportional to 140,669.26, 194,128.38 and 77,007.11 is: 106,272.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,669.26 : 194,128.38 = 77,007.11 : x
  2. Step 2: Convert to fraction form
    140,669.26/194,128.38 = 77,007.11/x
  3. Step 3: Cross multiply
    140,669.26x = 194,128.38 × 77,007.11
  4. Step 4: Simplify right side
    140,669.26x = 14,949,264,542.14
  5. Step 5: Solve for x
    x = 14,949,264,542.14/140,669.26
  6. Step 6: Final answer
    x = 106,272.44

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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.