Home / 112,324.92-154,940.37-66,972.60

Finding the Fourth Proportional to 112,324.92, 154,940.37 and 66,972.60

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Solution

The fourth proportional to 112,324.92, 154,940.37 and 66,972.60 is: 92,381.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,324.92 : 154,940.37 = 66,972.60 : x
  2. Step 2: Convert to fraction form
    112,324.92/154,940.37 = 66,972.60/x
  3. Step 3: Cross multiply
    112,324.92x = 154,940.37 × 66,972.60
  4. Step 4: Simplify right side
    112,324.92x = 10,376,759,423.86
  5. Step 5: Solve for x
    x = 10,376,759,423.86/112,324.92
  6. Step 6: Final answer
    x = 92,381.63

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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.