Home / 124,414.20-186,621.30-109,639.80

Finding the Fourth Proportional to 124,414.20, 186,621.30 and 109,639.80

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Solution

The fourth proportional to 124,414.20, 186,621.30 and 109,639.80 is: 164,459.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,414.20 : 186,621.30 = 109,639.80 : x
  2. Step 2: Convert to fraction form
    124,414.20/186,621.30 = 109,639.80/x
  3. Step 3: Cross multiply
    124,414.20x = 186,621.30 × 109,639.80
  4. Step 4: Simplify right side
    124,414.20x = 20,461,122,007.74
  5. Step 5: Solve for x
    x = 20,461,122,007.74/124,414.20
  6. Step 6: Final answer
    x = 164,459.70

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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.