Home / 120,146.04-165,806.82-74,850.84

Finding the Fourth Proportional to 120,146.04, 165,806.82 and 74,850.84

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Solution

The fourth proportional to 120,146.04, 165,806.82 and 74,850.84 is: 103,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,146.04 : 165,806.82 = 74,850.84 : x
  2. Step 2: Convert to fraction form
    120,146.04/165,806.82 = 74,850.84/x
  3. Step 3: Cross multiply
    120,146.04x = 165,806.82 × 74,850.84
  4. Step 4: Simplify right side
    120,146.04x = 12,410,779,754.73
  5. Step 5: Solve for x
    x = 12,410,779,754.73/120,146.04
  6. Step 6: Final answer
    x = 103,297.45

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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.