Home / 97,721.36-146,328.24-83,770.64

Finding the Fourth Proportional to 97,721.36, 146,328.24 and 83,770.64

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Solution

The fourth proportional to 97,721.36, 146,328.24 and 83,770.64 is: 125,438.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,721.36 : 146,328.24 = 83,770.64 : x
  2. Step 2: Convert to fraction form
    97,721.36/146,328.24 = 83,770.64/x
  3. Step 3: Cross multiply
    97,721.36x = 146,328.24 × 83,770.64
  4. Step 4: Simplify right side
    97,721.36x = 12,258,010,314.87
  5. Step 5: Solve for x
    x = 12,258,010,314.87/97,721.36
  6. Step 6: Final answer
    x = 125,438.39

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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.