Home / 97,824.80-146,737.20-91,215.20

Finding the Fourth Proportional to 97,824.80, 146,737.20 and 91,215.20

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Solution

The fourth proportional to 97,824.80, 146,737.20 and 91,215.20 is: 136,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,824.80 : 146,737.20 = 91,215.20 : x
  2. Step 2: Convert to fraction form
    97,824.80/146,737.20 = 91,215.20/x
  3. Step 3: Cross multiply
    97,824.80x = 146,737.20 × 91,215.20
  4. Step 4: Simplify right side
    97,824.80x = 13,384,663,045.44
  5. Step 5: Solve for x
    x = 13,384,663,045.44/97,824.80
  6. Step 6: Final answer
    x = 136,822.80

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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.