Home / 109,122.45-150,503.43-74,687.59

Finding the Fourth Proportional to 109,122.45, 150,503.43 and 74,687.59

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Solution

The fourth proportional to 109,122.45, 150,503.43 and 74,687.59 is: 103,010.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,122.45 : 150,503.43 = 74,687.59 : x
  2. Step 2: Convert to fraction form
    109,122.45/150,503.43 = 74,687.59/x
  3. Step 3: Cross multiply
    109,122.45x = 150,503.43 × 74,687.59
  4. Step 4: Simplify right side
    109,122.45x = 11,240,738,473.43
  5. Step 5: Solve for x
    x = 11,240,738,473.43/109,122.45
  6. Step 6: Final answer
    x = 103,010.32

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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.