Home / 126,645.19-189,967.75-47,740.96

Finding the Fourth Proportional to 126,645.19, 189,967.75 and 47,740.96

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Solution

The fourth proportional to 126,645.19, 189,967.75 and 47,740.96 is: 71,611.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,645.19 : 189,967.75 = 47,740.96 : x
  2. Step 2: Convert to fraction form
    126,645.19/189,967.75 = 47,740.96/x
  3. Step 3: Cross multiply
    126,645.19x = 189,967.75 × 47,740.96
  4. Step 4: Simplify right side
    126,645.19x = 9,069,243,109.61
  5. Step 5: Solve for x
    x = 9,069,243,109.61/126,645.19
  6. Step 6: Final answer
    x = 71,611.43

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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.