Home / 120,226.80-165,913.62-66,513.70

Finding the Fourth Proportional to 120,226.80, 165,913.62 and 66,513.70

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Solution

The fourth proportional to 120,226.80, 165,913.62 and 66,513.70 is: 91,789.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,226.80 : 165,913.62 = 66,513.70 : x
  2. Step 2: Convert to fraction form
    120,226.80/165,913.62 = 66,513.70/x
  3. Step 3: Cross multiply
    120,226.80x = 165,913.62 × 66,513.70
  4. Step 4: Simplify right side
    120,226.80x = 11,035,528,746.59
  5. Step 5: Solve for x
    x = 11,035,528,746.59/120,226.80
  6. Step 6: Final answer
    x = 91,789.26

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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.