Home / 148,615.55-222,628.06-81,890.18

Finding the Fourth Proportional to 148,615.55, 222,628.06 and 81,890.18

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Solution

The fourth proportional to 148,615.55, 222,628.06 and 81,890.18 is: 122,672.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,615.55 : 222,628.06 = 81,890.18 : x
  2. Step 2: Convert to fraction form
    148,615.55/222,628.06 = 81,890.18/x
  3. Step 3: Cross multiply
    148,615.55x = 222,628.06 × 81,890.18
  4. Step 4: Simplify right side
    148,615.55x = 18,231,051,906.45
  5. Step 5: Solve for x
    x = 18,231,051,906.45/148,615.55
  6. Step 6: Final answer
    x = 122,672.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.