Home / 124,542.20-186,813.30-102,672.20

Finding the Fourth Proportional to 124,542.20, 186,813.30 and 102,672.20

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Solution

The fourth proportional to 124,542.20, 186,813.30 and 102,672.20 is: 154,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,542.20 : 186,813.30 = 102,672.20 : x
  2. Step 2: Convert to fraction form
    124,542.20/186,813.30 = 102,672.20/x
  3. Step 3: Cross multiply
    124,542.20x = 186,813.30 × 102,672.20
  4. Step 4: Simplify right side
    124,542.20x = 19,180,532,500.26
  5. Step 5: Solve for x
    x = 19,180,532,500.26/124,542.20
  6. Step 6: Final answer
    x = 154,008.30

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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.