Home / 129,790.59-194,521.86-69,669.96

Finding the Fourth Proportional to 129,790.59, 194,521.86 and 69,669.96

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Solution

The fourth proportional to 129,790.59, 194,521.86 and 69,669.96 is: 104,416.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,790.59 : 194,521.86 = 69,669.96 : x
  2. Step 2: Convert to fraction form
    129,790.59/194,521.86 = 69,669.96/x
  3. Step 3: Cross multiply
    129,790.59x = 194,521.86 × 69,669.96
  4. Step 4: Simplify right side
    129,790.59x = 13,552,330,205.33
  5. Step 5: Solve for x
    x = 13,552,330,205.33/129,790.59
  6. Step 6: Final answer
    x = 104,416.89

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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.