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Finding the Fourth Proportional to 126,160.56, 174,093.61 and 72,407.74

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Solution

The fourth proportional to 126,160.56, 174,093.61 and 72,407.74 is: 99,918.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,160.56 : 174,093.61 = 72,407.74 : x
  2. Step 2: Convert to fraction form
    126,160.56/174,093.61 = 72,407.74/x
  3. Step 3: Cross multiply
    126,160.56x = 174,093.61 × 72,407.74
  4. Step 4: Simplify right side
    126,160.56x = 12,605,724,848.54
  5. Step 5: Solve for x
    x = 12,605,724,848.54/126,160.56
  6. Step 6: Final answer
    x = 99,918.11

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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.