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Finding the Fourth Proportional to 126,804, 174,988.27 and 68,660.46

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Solution

The fourth proportional to 126,804, 174,988.27 and 68,660.46 is: 94,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,804 : 174,988.27 = 68,660.46 : x
  2. Step 2: Convert to fraction form
    126,804/174,988.27 = 68,660.46/x
  3. Step 3: Cross multiply
    126,804x = 174,988.27 × 68,660.46
  4. Step 4: Simplify right side
    126,804x = 12,014,774,941.15
  5. Step 5: Solve for x
    x = 12,014,774,941.15/126,804
  6. Step 6: Final answer
    x = 94,750.76

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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.