Home / 119,629.88-165,090.60-65,913.48

Finding the Fourth Proportional to 119,629.88, 165,090.60 and 65,913.48

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Solution

The fourth proportional to 119,629.88, 165,090.60 and 65,913.48 is: 90,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,629.88 : 165,090.60 = 65,913.48 : x
  2. Step 2: Convert to fraction form
    119,629.88/165,090.60 = 65,913.48/x
  3. Step 3: Cross multiply
    119,629.88x = 165,090.60 × 65,913.48
  4. Step 4: Simplify right side
    119,629.88x = 10,881,695,961.29
  5. Step 5: Solve for x
    x = 10,881,695,961.29/119,629.88
  6. Step 6: Final answer
    x = 90,961.35

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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.