Home / 126,731.52-190,148.04-47,867.76

Finding the Fourth Proportional to 126,731.52, 190,148.04 and 47,867.76

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Solution

The fourth proportional to 126,731.52, 190,148.04 and 47,867.76 is: 71,820.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,731.52 : 190,148.04 = 47,867.76 : x
  2. Step 2: Convert to fraction form
    126,731.52/190,148.04 = 47,867.76/x
  3. Step 3: Cross multiply
    126,731.52x = 190,148.04 × 47,867.76
  4. Step 4: Simplify right side
    126,731.52x = 9,101,960,743.19
  5. Step 5: Solve for x
    x = 9,101,960,743.19/126,731.52
  6. Step 6: Final answer
    x = 71,820.81

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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.