Home / 129,412.46-194,127.06-40,669.67

Finding the Fourth Proportional to 129,412.46, 194,127.06 and 40,669.67

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Solution

The fourth proportional to 129,412.46, 194,127.06 and 40,669.67 is: 61,007.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,412.46 : 194,127.06 = 40,669.67 : x
  2. Step 2: Convert to fraction form
    129,412.46/194,127.06 = 40,669.67/x
  3. Step 3: Cross multiply
    129,412.46x = 194,127.06 × 40,669.67
  4. Step 4: Simplify right side
    129,412.46x = 7,895,083,468.27
  5. Step 5: Solve for x
    x = 7,895,083,468.27/129,412.46
  6. Step 6: Final answer
    x = 61,007.14

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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.