Home / 127,847.21-191,740.05-39,101.48

Finding the Fourth Proportional to 127,847.21, 191,740.05 and 39,101.48

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Solution

The fourth proportional to 127,847.21, 191,740.05 and 39,101.48 is: 58,642.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,847.21 : 191,740.05 = 39,101.48 : x
  2. Step 2: Convert to fraction form
    127,847.21/191,740.05 = 39,101.48/x
  3. Step 3: Cross multiply
    127,847.21x = 191,740.05 × 39,101.48
  4. Step 4: Simplify right side
    127,847.21x = 7,497,319,730.27
  5. Step 5: Solve for x
    x = 7,497,319,730.27/127,847.21
  6. Step 6: Final answer
    x = 58,642.81

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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.