Home / 126,915.04-190,323.35-67,718.42

Finding the Fourth Proportional to 126,915.04, 190,323.35 and 67,718.42

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Solution

The fourth proportional to 126,915.04, 190,323.35 and 67,718.42 is: 101,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,915.04 : 190,323.35 = 67,718.42 : x
  2. Step 2: Convert to fraction form
    126,915.04/190,323.35 = 67,718.42/x
  3. Step 3: Cross multiply
    126,915.04x = 190,323.35 × 67,718.42
  4. Step 4: Simplify right side
    126,915.04x = 12,888,396,551.11
  5. Step 5: Solve for x
    x = 12,888,396,551.11/126,915.04
  6. Step 6: Final answer
    x = 101,551.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.