Home / 104,910.90-157,431.96-42,581.40

Finding the Fourth Proportional to 104,910.90, 157,431.96 and 42,581.40

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Solution

The fourth proportional to 104,910.90, 157,431.96 and 42,581.40 is: 63,898.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,910.90 : 157,431.96 = 42,581.40 : x
  2. Step 2: Convert to fraction form
    104,910.90/157,431.96 = 42,581.40/x
  3. Step 3: Cross multiply
    104,910.90x = 157,431.96 × 42,581.40
  4. Step 4: Simplify right side
    104,910.90x = 6,703,673,261.54
  5. Step 5: Solve for x
    x = 6,703,673,261.54/104,910.90
  6. Step 6: Final answer
    x = 63,898.73

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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.