Home / 118,145.95-177,325.45-80,103.20

Finding the Fourth Proportional to 118,145.95, 177,325.45 and 80,103.20

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Solution

The fourth proportional to 118,145.95, 177,325.45 and 80,103.20 is: 120,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,145.95 : 177,325.45 = 80,103.20 : x
  2. Step 2: Convert to fraction form
    118,145.95/177,325.45 = 80,103.20/x
  3. Step 3: Cross multiply
    118,145.95x = 177,325.45 × 80,103.20
  4. Step 4: Simplify right side
    118,145.95x = 14,204,334,899.55
  5. Step 5: Solve for x
    x = 14,204,334,899.55/118,145.95
  6. Step 6: Final answer
    x = 120,227.02

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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.