Home / 109,989.27-151,783.97-61,591.63

Finding the Fourth Proportional to 109,989.27, 151,783.97 and 61,591.63

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Solution

The fourth proportional to 109,989.27, 151,783.97 and 61,591.63 is: 84,995.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,989.27 : 151,783.97 = 61,591.63 : x
  2. Step 2: Convert to fraction form
    109,989.27/151,783.97 = 61,591.63/x
  3. Step 3: Cross multiply
    109,989.27x = 151,783.97 × 61,591.63
  4. Step 4: Simplify right side
    109,989.27x = 9,348,622,120.17
  5. Step 5: Solve for x
    x = 9,348,622,120.17/109,989.27
  6. Step 6: Final answer
    x = 84,995.76

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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.