Home / 126,611.79-174,721.28-70,021.95

Finding the Fourth Proportional to 126,611.79, 174,721.28 and 70,021.95

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Solution

The fourth proportional to 126,611.79, 174,721.28 and 70,021.95 is: 96,628.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,611.79 : 174,721.28 = 70,021.95 : x
  2. Step 2: Convert to fraction form
    126,611.79/174,721.28 = 70,021.95/x
  3. Step 3: Cross multiply
    126,611.79x = 174,721.28 × 70,021.95
  4. Step 4: Simplify right side
    126,611.79x = 12,234,324,732.10
  5. Step 5: Solve for x
    x = 12,234,324,732.10/126,611.79
  6. Step 6: Final answer
    x = 96,628.64

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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.