Home / 195,478.56-269,737.68-109,442.40

Finding the Fourth Proportional to 195,478.56, 269,737.68 and 109,442.40

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Solution

The fourth proportional to 195,478.56, 269,737.68 and 109,442.40 is: 151,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,478.56 : 269,737.68 = 109,442.40 : x
  2. Step 2: Convert to fraction form
    195,478.56/269,737.68 = 109,442.40/x
  3. Step 3: Cross multiply
    195,478.56x = 269,737.68 × 109,442.40
  4. Step 4: Simplify right side
    195,478.56x = 29,520,739,069.63
  5. Step 5: Solve for x
    x = 29,520,739,069.63/195,478.56
  6. Step 6: Final answer
    x = 151,017.78

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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.