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Finding the Fourth Proportional to 101,622.06, 140,092.20 and 71,313.48

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Solution

The fourth proportional to 101,622.06, 140,092.20 and 71,313.48 is: 98,309.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,622.06 : 140,092.20 = 71,313.48 : x
  2. Step 2: Convert to fraction form
    101,622.06/140,092.20 = 71,313.48/x
  3. Step 3: Cross multiply
    101,622.06x = 140,092.20 × 71,313.48
  4. Step 4: Simplify right side
    101,622.06x = 9,990,462,302.86
  5. Step 5: Solve for x
    x = 9,990,462,302.86/101,622.06
  6. Step 6: Final answer
    x = 98,309.98

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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.