Home / 106,138.89-146,532.11-70,377.26

Finding the Fourth Proportional to 106,138.89, 146,532.11 and 70,377.26

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Solution

The fourth proportional to 106,138.89, 146,532.11 and 70,377.26 is: 97,160.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,138.89 : 146,532.11 = 70,377.26 : x
  2. Step 2: Convert to fraction form
    106,138.89/146,532.11 = 70,377.26/x
  3. Step 3: Cross multiply
    106,138.89x = 146,532.11 × 70,377.26
  4. Step 4: Simplify right side
    106,138.89x = 10,312,527,319.27
  5. Step 5: Solve for x
    x = 10,312,527,319.27/106,138.89
  6. Step 6: Final answer
    x = 97,160.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.