Home / 149,280.20-206,025.51-85,616.63

Finding the Fourth Proportional to 149,280.20, 206,025.51 and 85,616.63

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Solution

The fourth proportional to 149,280.20, 206,025.51 and 85,616.63 is: 118,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,280.20 : 206,025.51 = 85,616.63 : x
  2. Step 2: Convert to fraction form
    149,280.20/206,025.51 = 85,616.63/x
  3. Step 3: Cross multiply
    149,280.20x = 206,025.51 × 85,616.63
  4. Step 4: Simplify right side
    149,280.20x = 17,639,209,860.23
  5. Step 5: Solve for x
    x = 17,639,209,860.23/149,280.20
  6. Step 6: Final answer
    x = 118,161.75

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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.