Home / 119,939.64-165,530.74-99,760.92

Finding the Fourth Proportional to 119,939.64, 165,530.74 and 99,760.92

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Solution

The fourth proportional to 119,939.64, 165,530.74 and 99,760.92 is: 137,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,939.64 : 165,530.74 = 99,760.92 : x
  2. Step 2: Convert to fraction form
    119,939.64/165,530.74 = 99,760.92/x
  3. Step 3: Cross multiply
    119,939.64x = 165,530.74 × 99,760.92
  4. Step 4: Simplify right side
    119,939.64x = 16,513,498,910.68
  5. Step 5: Solve for x
    x = 16,513,498,910.68/119,939.64
  6. Step 6: Final answer
    x = 137,681.74

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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.