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Finding the Fourth Proportional to 126,403.68, 174,432.51 and 69,813.84

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Solution

The fourth proportional to 126,403.68, 174,432.51 and 69,813.84 is: 96,340.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,403.68 : 174,432.51 = 69,813.84 : x
  2. Step 2: Convert to fraction form
    126,403.68/174,432.51 = 69,813.84/x
  3. Step 3: Cross multiply
    126,403.68x = 174,432.51 × 69,813.84
  4. Step 4: Simplify right side
    126,403.68x = 12,177,803,343.94
  5. Step 5: Solve for x
    x = 12,177,803,343.94/126,403.68
  6. Step 6: Final answer
    x = 96,340.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.