Home / 119,903.15-165,464.36-66,186.78

Finding the Fourth Proportional to 119,903.15, 165,464.36 and 66,186.78

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Solution

The fourth proportional to 119,903.15, 165,464.36 and 66,186.78 is: 91,336.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,903.15 : 165,464.36 = 66,186.78 : x
  2. Step 2: Convert to fraction form
    119,903.15/165,464.36 = 66,186.78/x
  3. Step 3: Cross multiply
    119,903.15x = 165,464.36 × 66,186.78
  4. Step 4: Simplify right side
    119,903.15x = 10,951,553,193.16
  5. Step 5: Solve for x
    x = 10,951,553,193.16/119,903.15
  6. Step 6: Final answer
    x = 91,336.66

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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.