Home / 104,715.18-157,044.42-71,429.04

Finding the Fourth Proportional to 104,715.18, 157,044.42 and 71,429.04

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Solution

The fourth proportional to 104,715.18, 157,044.42 and 71,429.04 is: 107,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,715.18 : 157,044.42 = 71,429.04 : x
  2. Step 2: Convert to fraction form
    104,715.18/157,044.42 = 71,429.04/x
  3. Step 3: Cross multiply
    104,715.18x = 157,044.42 × 71,429.04
  4. Step 4: Simplify right side
    104,715.18x = 11,217,532,157.96
  5. Step 5: Solve for x
    x = 11,217,532,157.96/104,715.18
  6. Step 6: Final answer
    x = 107,124.22

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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.