Home / 109,979.20-151,771.27-59,678.20

Finding the Fourth Proportional to 109,979.20, 151,771.27 and 59,678.20

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Solution

The fourth proportional to 109,979.20, 151,771.27 and 59,678.20 is: 82,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,979.20 : 151,771.27 = 59,678.20 : x
  2. Step 2: Convert to fraction form
    109,979.20/151,771.27 = 59,678.20/x
  3. Step 3: Cross multiply
    109,979.20x = 151,771.27 × 59,678.20
  4. Step 4: Simplify right side
    109,979.20x = 9,057,436,205.31
  5. Step 5: Solve for x
    x = 9,057,436,205.31/109,979.20
  6. Step 6: Final answer
    x = 82,355.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.