Home / 119,629.17-165,090.15-65,913.66

Finding the Fourth Proportional to 119,629.17, 165,090.15 and 65,913.66

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Solution

The fourth proportional to 119,629.17, 165,090.15 and 65,913.66 is: 90,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,629.17 : 165,090.15 = 65,913.66 : x
  2. Step 2: Convert to fraction form
    119,629.17/165,090.15 = 65,913.66/x
  3. Step 3: Cross multiply
    119,629.17x = 165,090.15 × 65,913.66
  4. Step 4: Simplify right side
    119,629.17x = 10,881,696,016.45
  5. Step 5: Solve for x
    x = 10,881,696,016.45/119,629.17
  6. Step 6: Final answer
    x = 90,961.90

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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.