Home / 120,104.04-165,748.86-74,808.84

Finding the Fourth Proportional to 120,104.04, 165,748.86 and 74,808.84

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Solution

The fourth proportional to 120,104.04, 165,748.86 and 74,808.84 is: 103,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,104.04 : 165,748.86 = 74,808.84 : x
  2. Step 2: Convert to fraction form
    120,104.04/165,748.86 = 74,808.84/x
  3. Step 3: Cross multiply
    120,104.04x = 165,748.86 × 74,808.84
  4. Step 4: Simplify right side
    120,104.04x = 12,399,479,947.92
  5. Step 5: Solve for x
    x = 12,399,479,947.92/120,104.04
  6. Step 6: Final answer
    x = 103,239.49

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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.