Home / 124,481.20-186,721.80-102,611.20

Finding the Fourth Proportional to 124,481.20, 186,721.80 and 102,611.20

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Solution

The fourth proportional to 124,481.20, 186,721.80 and 102,611.20 is: 153,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,481.20 : 186,721.80 = 102,611.20 : x
  2. Step 2: Convert to fraction form
    124,481.20/186,721.80 = 102,611.20/x
  3. Step 3: Cross multiply
    124,481.20x = 186,721.80 × 102,611.20
  4. Step 4: Simplify right side
    124,481.20x = 19,159,747,964.16
  5. Step 5: Solve for x
    x = 19,159,747,964.16/124,481.20
  6. Step 6: Final answer
    x = 153,916.80

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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.