Home / 119,919.51-165,489.13-66,204.61

Finding the Fourth Proportional to 119,919.51, 165,489.13 and 66,204.61

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Solution

The fourth proportional to 119,919.51, 165,489.13 and 66,204.61 is: 91,362.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,919.51 : 165,489.13 = 66,204.61 : x
  2. Step 2: Convert to fraction form
    119,919.51/165,489.13 = 66,204.61/x
  3. Step 3: Cross multiply
    119,919.51x = 165,489.13 × 66,204.61
  4. Step 4: Simplify right side
    119,919.51x = 10,956,142,979.87
  5. Step 5: Solve for x
    x = 10,956,142,979.87/119,919.51
  6. Step 6: Final answer
    x = 91,362.48

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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.