Home / 110,143.20-165,099.60-60,146.40

Finding the Fourth Proportional to 110,143.20, 165,099.60 and 60,146.40

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Solution

The fourth proportional to 110,143.20, 165,099.60 and 60,146.40 is: 90,156.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,143.20 : 165,099.60 = 60,146.40 : x
  2. Step 2: Convert to fraction form
    110,143.20/165,099.60 = 60,146.40/x
  3. Step 3: Cross multiply
    110,143.20x = 165,099.60 × 60,146.40
  4. Step 4: Simplify right side
    110,143.20x = 9,930,146,581.44
  5. Step 5: Solve for x
    x = 9,930,146,581.44/110,143.20
  6. Step 6: Final answer
    x = 90,156.69

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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.