Home / 129,699.90-194,562.81-39,741.57

Finding the Fourth Proportional to 129,699.90, 194,562.81 and 39,741.57

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Solution

The fourth proportional to 129,699.90, 194,562.81 and 39,741.57 is: 59,616.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,699.90 : 194,562.81 = 39,741.57 : x
  2. Step 2: Convert to fraction form
    129,699.90/194,562.81 = 39,741.57/x
  3. Step 3: Cross multiply
    129,699.90x = 194,562.81 × 39,741.57
  4. Step 4: Simplify right side
    129,699.90x = 7,732,231,533.01
  5. Step 5: Solve for x
    x = 7,732,231,533.01/129,699.90
  6. Step 6: Final answer
    x = 59,616.33

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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.