Home / 110,500.60-165,750.90-80,433.40

Finding the Fourth Proportional to 110,500.60, 165,750.90 and 80,433.40

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Solution

The fourth proportional to 110,500.60, 165,750.90 and 80,433.40 is: 120,650.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,500.60 : 165,750.90 = 80,433.40 : x
  2. Step 2: Convert to fraction form
    110,500.60/165,750.90 = 80,433.40/x
  3. Step 3: Cross multiply
    110,500.60x = 165,750.90 × 80,433.40
  4. Step 4: Simplify right side
    110,500.60x = 13,331,908,440.06
  5. Step 5: Solve for x
    x = 13,331,908,440.06/110,500.60
  6. Step 6: Final answer
    x = 120,650.10

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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.