Home / 119,756.64-165,257.10-66,042.30

Finding the Fourth Proportional to 119,756.64, 165,257.10 and 66,042.30

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Solution

The fourth proportional to 119,756.64, 165,257.10 and 66,042.30 is: 91,134.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,756.64 : 165,257.10 = 66,042.30 : x
  2. Step 2: Convert to fraction form
    119,756.64/165,257.10 = 66,042.30/x
  3. Step 3: Cross multiply
    119,756.64x = 165,257.10 × 66,042.30
  4. Step 4: Simplify right side
    119,756.64x = 10,913,958,975.33
  5. Step 5: Solve for x
    x = 10,913,958,975.33/119,756.64
  6. Step 6: Final answer
    x = 91,134.48

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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.