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Finding the Fourth Proportional to 126,888.17, 190,283.04 and 67,691.54

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Solution

The fourth proportional to 126,888.17, 190,283.04 and 67,691.54 is: 101,511.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,888.17 : 190,283.04 = 67,691.54 : x
  2. Step 2: Convert to fraction form
    126,888.17/190,283.04 = 67,691.54/x
  3. Step 3: Cross multiply
    126,888.17x = 190,283.04 × 67,691.54
  4. Step 4: Simplify right side
    126,888.17x = 12,880,552,489.19
  5. Step 5: Solve for x
    x = 12,880,552,489.19/126,888.17
  6. Step 6: Final answer
    x = 101,511.06

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1.5x scale

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.