Home / 189,637.80-261,708.12-109,065.36

Finding the Fourth Proportional to 189,637.80, 261,708.12 and 109,065.36

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Solution

The fourth proportional to 189,637.80, 261,708.12 and 109,065.36 is: 150,514.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,637.80 : 261,708.12 = 109,065.36 : x
  2. Step 2: Convert to fraction form
    189,637.80/261,708.12 = 109,065.36/x
  3. Step 3: Cross multiply
    189,637.80x = 261,708.12 × 109,065.36
  4. Step 4: Simplify right side
    189,637.80x = 28,543,290,322.72
  5. Step 5: Solve for x
    x = 28,543,290,322.72/189,637.80
  6. Step 6: Final answer
    x = 150,514.77

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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.