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Finding the Fourth Proportional to 126,644.86, 189,967.24 and 47,740.63

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Solution

The fourth proportional to 126,644.86, 189,967.24 and 47,740.63 is: 71,610.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,644.86 : 189,967.24 = 47,740.63 : x
  2. Step 2: Convert to fraction form
    126,644.86/189,967.24 = 47,740.63/x
  3. Step 3: Cross multiply
    126,644.86x = 189,967.24 × 47,740.63
  4. Step 4: Simplify right side
    126,644.86x = 9,069,155,716.96
  5. Step 5: Solve for x
    x = 9,069,155,716.96/126,644.86
  6. Step 6: Final answer
    x = 71,610.93

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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.