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Finding the Fourth Proportional to 91,760.24, 137,640.36 and 91,760.24

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Solution

The fourth proportional to 91,760.24, 137,640.36 and 91,760.24 is: 137,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,760.24 : 137,640.36 = 91,760.24 : x
  2. Step 2: Convert to fraction form
    91,760.24/137,640.36 = 91,760.24/x
  3. Step 3: Cross multiply
    91,760.24x = 137,640.36 × 91,760.24
  4. Step 4: Simplify right side
    91,760.24x = 12,629,911,893.78
  5. Step 5: Solve for x
    x = 12,629,911,893.78/91,760.24
  6. Step 6: Final answer
    x = 137,640.36

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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.