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Finding the Fourth Proportional to 121,500.47, 167,662.80 and 67,053.12

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Solution

The fourth proportional to 121,500.47, 167,662.80 and 67,053.12 is: 92,528.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,500.47 : 167,662.80 = 67,053.12 : x
  2. Step 2: Convert to fraction form
    121,500.47/167,662.80 = 67,053.12/x
  3. Step 3: Cross multiply
    121,500.47x = 167,662.80 × 67,053.12
  4. Step 4: Simplify right side
    121,500.47x = 11,242,313,847.94
  5. Step 5: Solve for x
    x = 11,242,313,847.94/121,500.47
  6. Step 6: Final answer
    x = 92,528.98

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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.