Home / 118,731.12-163,867.44-67,743.76

Finding the Fourth Proportional to 118,731.12, 163,867.44 and 67,743.76

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Solution

The fourth proportional to 118,731.12, 163,867.44 and 67,743.76 is: 93,496.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,731.12 : 163,867.44 = 67,743.76 : x
  2. Step 2: Convert to fraction form
    118,731.12/163,867.44 = 67,743.76/x
  3. Step 3: Cross multiply
    118,731.12x = 163,867.44 × 67,743.76
  4. Step 4: Simplify right side
    118,731.12x = 11,100,996,527.17
  5. Step 5: Solve for x
    x = 11,100,996,527.17/118,731.12
  6. Step 6: Final answer
    x = 93,496.94

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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.