Home / 119,829.70-165,365.40-66,114.64

Finding the Fourth Proportional to 119,829.70, 165,365.40 and 66,114.64

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Solution

The fourth proportional to 119,829.70, 165,365.40 and 66,114.64 is: 91,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,829.70 : 165,365.40 = 66,114.64 : x
  2. Step 2: Convert to fraction form
    119,829.70/165,365.40 = 66,114.64/x
  3. Step 3: Cross multiply
    119,829.70x = 165,365.40 × 66,114.64
  4. Step 4: Simplify right side
    119,829.70x = 10,933,073,889.46
  5. Step 5: Solve for x
    x = 10,933,073,889.46/119,829.70
  6. Step 6: Final answer
    x = 91,238.43

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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.