Home / 126,136.50-174,069.74-68,775.36

Finding the Fourth Proportional to 126,136.50, 174,069.74 and 68,775.36

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Solution

The fourth proportional to 126,136.50, 174,069.74 and 68,775.36 is: 94,910.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,136.50 : 174,069.74 = 68,775.36 : x
  2. Step 2: Convert to fraction form
    126,136.50/174,069.74 = 68,775.36/x
  3. Step 3: Cross multiply
    126,136.50x = 174,069.74 × 68,775.36
  4. Step 4: Simplify right side
    126,136.50x = 11,971,708,689.73
  5. Step 5: Solve for x
    x = 11,971,708,689.73/126,136.50
  6. Step 6: Final answer
    x = 94,910.74

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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.