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Finding the Fourth Proportional to 126,661.61, 174,793.19 and 69,306.32

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Solution

The fourth proportional to 126,661.61, 174,793.19 and 69,306.32 is: 95,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,661.61 : 174,793.19 = 69,306.32 : x
  2. Step 2: Convert to fraction form
    126,661.61/174,793.19 = 69,306.32/x
  3. Step 3: Cross multiply
    126,661.61x = 174,793.19 × 69,306.32
  4. Step 4: Simplify right side
    126,661.61x = 12,114,271,539.46
  5. Step 5: Solve for x
    x = 12,114,271,539.46/126,661.61
  6. Step 6: Final answer
    x = 95,642.81

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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.