Home / 115,712.12-159,618.47-67,308.60

Finding the Fourth Proportional to 115,712.12, 159,618.47 and 67,308.60

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Solution

The fourth proportional to 115,712.12, 159,618.47 and 67,308.60 is: 92,848.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,712.12 : 159,618.47 = 67,308.60 : x
  2. Step 2: Convert to fraction form
    115,712.12/159,618.47 = 67,308.60/x
  3. Step 3: Cross multiply
    115,712.12x = 159,618.47 × 67,308.60
  4. Step 4: Simplify right side
    115,712.12x = 10,743,694,615.21
  5. Step 5: Solve for x
    x = 10,743,694,615.21/115,712.12
  6. Step 6: Final answer
    x = 92,848.48

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1.5x scale

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.