Home / 120,274.75-165,869.52-103,273.66

Finding the Fourth Proportional to 120,274.75, 165,869.52 and 103,273.66

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Solution

The fourth proportional to 120,274.75, 165,869.52 and 103,273.66 is: 142,423.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,274.75 : 165,869.52 = 103,273.66 : x
  2. Step 2: Convert to fraction form
    120,274.75/165,869.52 = 103,273.66/x
  3. Step 3: Cross multiply
    120,274.75x = 165,869.52 × 103,273.66
  4. Step 4: Simplify right side
    120,274.75x = 17,129,952,412.84
  5. Step 5: Solve for x
    x = 17,129,952,412.84/120,274.75
  6. Step 6: Final answer
    x = 142,423.51

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1.5x scale

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.