Home / 129,699.65-194,557.68-40,956.66

Finding the Fourth Proportional to 129,699.65, 194,557.68 and 40,956.66

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Solution

The fourth proportional to 129,699.65, 194,557.68 and 40,956.66 is: 61,437.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,699.65 : 194,557.68 = 40,956.66 : x
  2. Step 2: Convert to fraction form
    129,699.65/194,557.68 = 40,956.66/x
  3. Step 3: Cross multiply
    129,699.65x = 194,557.68 × 40,956.66
  4. Step 4: Simplify right side
    129,699.65x = 7,968,432,750.15
  5. Step 5: Solve for x
    x = 7,968,432,750.15/129,699.65
  6. Step 6: Final answer
    x = 61,437.58

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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.