Home / 129,036.74-193,522.23-40,299.21

Finding the Fourth Proportional to 129,036.74, 193,522.23 and 40,299.21

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Solution

The fourth proportional to 129,036.74, 193,522.23 and 40,299.21 is: 60,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,036.74 : 193,522.23 = 40,299.21 : x
  2. Step 2: Convert to fraction form
    129,036.74/193,522.23 = 40,299.21/x
  3. Step 3: Cross multiply
    129,036.74x = 193,522.23 × 40,299.21
  4. Step 4: Simplify right side
    129,036.74x = 7,798,792,986.44
  5. Step 5: Solve for x
    x = 7,798,792,986.44/129,036.74
  6. Step 6: Final answer
    x = 60,438.55

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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.