Home / 126,045.72-173,940.86-68,685.55

Finding the Fourth Proportional to 126,045.72, 173,940.86 and 68,685.55

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Solution

The fourth proportional to 126,045.72, 173,940.86 and 68,685.55 is: 94,784.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,045.72 : 173,940.86 = 68,685.55 : x
  2. Step 2: Convert to fraction form
    126,045.72/173,940.86 = 68,685.55/x
  3. Step 3: Cross multiply
    126,045.72x = 173,940.86 × 68,685.55
  4. Step 4: Simplify right side
    126,045.72x = 11,947,223,373.43
  5. Step 5: Solve for x
    x = 11,947,223,373.43/126,045.72
  6. Step 6: Final answer
    x = 94,784.84

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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.