Home / 91,824.57-137,450.61-70,709.76

Finding the Fourth Proportional to 91,824.57, 137,450.61 and 70,709.76

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Solution

The fourth proportional to 91,824.57, 137,450.61 and 70,709.76 is: 105,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,824.57 : 137,450.61 = 70,709.76 : x
  2. Step 2: Convert to fraction form
    91,824.57/137,450.61 = 70,709.76/x
  3. Step 3: Cross multiply
    91,824.57x = 137,450.61 × 70,709.76
  4. Step 4: Simplify right side
    91,824.57x = 9,719,099,644.95
  5. Step 5: Solve for x
    x = 9,719,099,644.95/91,824.57
  6. Step 6: Final answer
    x = 105,844.22

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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.