Home / 129,389.74-194,092.36-40,643.24

Finding the Fourth Proportional to 129,389.74, 194,092.36 and 40,643.24

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Solution

The fourth proportional to 129,389.74, 194,092.36 and 40,643.24 is: 60,967.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,389.74 : 194,092.36 = 40,643.24 : x
  2. Step 2: Convert to fraction form
    129,389.74/194,092.36 = 40,643.24/x
  3. Step 3: Cross multiply
    129,389.74x = 194,092.36 × 40,643.24
  4. Step 4: Simplify right side
    129,389.74x = 7,888,541,297.58
  5. Step 5: Solve for x
    x = 7,888,541,297.58/129,389.74
  6. Step 6: Final answer
    x = 60,967.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.