Home / 70,395.85-105,331.33-69,608.53

Finding the Fourth Proportional to 70,395.85, 105,331.33 and 69,608.53

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Solution

The fourth proportional to 70,395.85, 105,331.33 and 69,608.53 is: 104,153.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,395.85 : 105,331.33 = 69,608.53 : x
  2. Step 2: Convert to fraction form
    70,395.85/105,331.33 = 69,608.53/x
  3. Step 3: Cross multiply
    70,395.85x = 105,331.33 × 69,608.53
  4. Step 4: Simplify right side
    70,395.85x = 7,331,959,044.24
  5. Step 5: Solve for x
    x = 7,331,959,044.24/70,395.85
  6. Step 6: Final answer
    x = 104,153.29

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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.