Home / 74,166.30-111,508.65-72,611.10

Finding the Fourth Proportional to 74,166.30, 111,508.65 and 72,611.10

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Solution

The fourth proportional to 74,166.30, 111,508.65 and 72,611.10 is: 109,170.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,166.30 : 111,508.65 = 72,611.10 : x
  2. Step 2: Convert to fraction form
    74,166.30/111,508.65 = 72,611.10/x
  3. Step 3: Cross multiply
    74,166.30x = 111,508.65 × 72,611.10
  4. Step 4: Simplify right side
    74,166.30x = 8,096,765,736.02
  5. Step 5: Solve for x
    x = 8,096,765,736.02/74,166.30
  6. Step 6: Final answer
    x = 109,170.41

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1.5x scale

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.