Home / 206,633.35-285,080.68-135,054.66

Finding the Fourth Proportional to 206,633.35, 285,080.68 and 135,054.66

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Solution

The fourth proportional to 206,633.35, 285,080.68 and 135,054.66 is: 186,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,633.35 : 285,080.68 = 135,054.66 : x
  2. Step 2: Convert to fraction form
    206,633.35/285,080.68 = 135,054.66/x
  3. Step 3: Cross multiply
    206,633.35x = 285,080.68 × 135,054.66
  4. Step 4: Simplify right side
    206,633.35x = 38,501,475,547.84
  5. Step 5: Solve for x
    x = 38,501,475,547.84/206,633.35
  6. Step 6: Final answer
    x = 186,327.50

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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.