Home / 121,271.60-167,359.44-70,286

Finding the Fourth Proportional to 121,271.60, 167,359.44 and 70,286

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Solution

The fourth proportional to 121,271.60, 167,359.44 and 70,286 is: 96,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,271.60 : 167,359.44 = 70,286 : x
  2. Step 2: Convert to fraction form
    121,271.60/167,359.44 = 70,286/x
  3. Step 3: Cross multiply
    121,271.60x = 167,359.44 × 70,286
  4. Step 4: Simplify right side
    121,271.60x = 11,763,025,599.84
  5. Step 5: Solve for x
    x = 11,763,025,599.84/121,271.60
  6. Step 6: Final answer
    x = 96,997.36

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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.