Home / 109,140.24-150,600.06-68,838.78

Finding the Fourth Proportional to 109,140.24, 150,600.06 and 68,838.78

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Solution

The fourth proportional to 109,140.24, 150,600.06 and 68,838.78 is: 94,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,140.24 : 150,600.06 = 68,838.78 : x
  2. Step 2: Convert to fraction form
    109,140.24/150,600.06 = 68,838.78/x
  3. Step 3: Cross multiply
    109,140.24x = 150,600.06 × 68,838.78
  4. Step 4: Simplify right side
    109,140.24x = 10,367,124,398.33
  5. Step 5: Solve for x
    x = 10,367,124,398.33/109,140.24
  6. Step 6: Final answer
    x = 94,989.02

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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.