Home / 119,871.32-165,422.30-66,156.36

Finding the Fourth Proportional to 119,871.32, 165,422.30 and 66,156.36

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Solution

The fourth proportional to 119,871.32, 165,422.30 and 66,156.36 is: 91,295.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,871.32 : 165,422.30 = 66,156.36 : x
  2. Step 2: Convert to fraction form
    119,871.32/165,422.30 = 66,156.36/x
  3. Step 3: Cross multiply
    119,871.32x = 165,422.30 × 66,156.36
  4. Step 4: Simplify right side
    119,871.32x = 10,943,736,900.05
  5. Step 5: Solve for x
    x = 10,943,736,900.05/119,871.32
  6. Step 6: Final answer
    x = 91,295.71

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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.