Home / 126,931.58-190,348.16-67,734.95

Finding the Fourth Proportional to 126,931.58, 190,348.16 and 67,734.95

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Solution

The fourth proportional to 126,931.58, 190,348.16 and 67,734.95 is: 101,576.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,931.58 : 190,348.16 = 67,734.95 : x
  2. Step 2: Convert to fraction form
    126,931.58/190,348.16 = 67,734.95/x
  3. Step 3: Cross multiply
    126,931.58x = 190,348.16 × 67,734.95
  4. Step 4: Simplify right side
    126,931.58x = 12,893,221,809.78
  5. Step 5: Solve for x
    x = 12,893,221,809.78/126,931.58
  6. Step 6: Final answer
    x = 101,576.16

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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.