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Finding the Fourth Proportional to 126,065.84, 173,970.48 and 69,477.20

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Solution

The fourth proportional to 126,065.84, 173,970.48 and 69,477.20 is: 95,878.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,065.84 : 173,970.48 = 69,477.20 : x
  2. Step 2: Convert to fraction form
    126,065.84/173,970.48 = 69,477.20/x
  3. Step 3: Cross multiply
    126,065.84x = 173,970.48 × 69,477.20
  4. Step 4: Simplify right side
    126,065.84x = 12,086,981,833.06
  5. Step 5: Solve for x
    x = 12,086,981,833.06/126,065.84
  6. Step 6: Final answer
    x = 95,878.33

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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.