Home / 88,921.46-122,756.20-68,732.66

Finding the Fourth Proportional to 88,921.46, 122,756.20 and 68,732.66

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Solution

The fourth proportional to 88,921.46, 122,756.20 and 68,732.66 is: 94,885.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,921.46 : 122,756.20 = 68,732.66 : x
  2. Step 2: Convert to fraction form
    88,921.46/122,756.20 = 68,732.66/x
  3. Step 3: Cross multiply
    88,921.46x = 122,756.20 × 68,732.66
  4. Step 4: Simplify right side
    88,921.46x = 8,437,360,157.49
  5. Step 5: Solve for x
    x = 8,437,360,157.49/88,921.46
  6. Step 6: Final answer
    x = 94,885.53

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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.