Home / 109,550.01-151,138.49-80,938.58

Finding the Fourth Proportional to 109,550.01, 151,138.49 and 80,938.58

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Solution

The fourth proportional to 109,550.01, 151,138.49 and 80,938.58 is: 111,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,550.01 : 151,138.49 = 80,938.58 : x
  2. Step 2: Convert to fraction form
    109,550.01/151,138.49 = 80,938.58/x
  3. Step 3: Cross multiply
    109,550.01x = 151,138.49 × 80,938.58
  4. Step 4: Simplify right side
    109,550.01x = 12,232,934,763.94
  5. Step 5: Solve for x
    x = 12,232,934,763.94/109,550.01
  6. Step 6: Final answer
    x = 111,665.30

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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.