Home / 109,522.32-151,129.48-80,857.24

Finding the Fourth Proportional to 109,522.32, 151,129.48 and 80,857.24

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Solution

The fourth proportional to 109,522.32, 151,129.48 and 80,857.24 is: 111,574.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,522.32 : 151,129.48 = 80,857.24 : x
  2. Step 2: Convert to fraction form
    109,522.32/151,129.48 = 80,857.24/x
  3. Step 3: Cross multiply
    109,522.32x = 151,129.48 × 80,857.24
  4. Step 4: Simplify right side
    109,522.32x = 12,219,912,635.44
  5. Step 5: Solve for x
    x = 12,219,912,635.44/109,522.32
  6. Step 6: Final answer
    x = 111,574.63

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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.