Home / 189,549.60-261,593.80-109,003.28

Finding the Fourth Proportional to 189,549.60, 261,593.80 and 109,003.28

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Solution

The fourth proportional to 189,549.60, 261,593.80 and 109,003.28 is: 150,433.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,549.60 : 261,593.80 = 109,003.28 : x
  2. Step 2: Convert to fraction form
    189,549.60/261,593.80 = 109,003.28/x
  3. Step 3: Cross multiply
    189,549.60x = 261,593.80 × 109,003.28
  4. Step 4: Simplify right side
    189,549.60x = 28,514,582,227.66
  5. Step 5: Solve for x
    x = 28,514,582,227.66/189,549.60
  6. Step 6: Final answer
    x = 150,433.35

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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.