Home / 129,315.42-193,986.63-35,821.17

Finding the Fourth Proportional to 129,315.42, 193,986.63 and 35,821.17

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Solution

The fourth proportional to 129,315.42, 193,986.63 and 35,821.17 is: 53,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,315.42 : 193,986.63 = 35,821.17 : x
  2. Step 2: Convert to fraction form
    129,315.42/193,986.63 = 35,821.17/x
  3. Step 3: Cross multiply
    129,315.42x = 193,986.63 × 35,821.17
  4. Step 4: Simplify right side
    129,315.42x = 6,948,828,050.96
  5. Step 5: Solve for x
    x = 6,948,828,050.96/129,315.42
  6. Step 6: Final answer
    x = 53,735.49

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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.