Home / 110,143.11-165,288.48-70,727.90

Finding the Fourth Proportional to 110,143.11, 165,288.48 and 70,727.90

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Solution

The fourth proportional to 110,143.11, 165,288.48 and 70,727.90 is: 106,139.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,143.11 : 165,288.48 = 70,727.90 : x
  2. Step 2: Convert to fraction form
    110,143.11/165,288.48 = 70,727.90/x
  3. Step 3: Cross multiply
    110,143.11x = 165,288.48 × 70,727.90
  4. Step 4: Simplify right side
    110,143.11x = 11,690,507,320.51
  5. Step 5: Solve for x
    x = 11,690,507,320.51/110,143.11
  6. Step 6: Final answer
    x = 106,139.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.