Home / 91,156.20-136,637.10-34,974.60

Finding the Fourth Proportional to 91,156.20, 136,637.10 and 34,974.60

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Solution

The fourth proportional to 91,156.20, 136,637.10 and 34,974.60 is: 52,424.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,156.20 : 136,637.10 = 34,974.60 : x
  2. Step 2: Convert to fraction form
    91,156.20/136,637.10 = 34,974.60/x
  3. Step 3: Cross multiply
    91,156.20x = 136,637.10 × 34,974.60
  4. Step 4: Simplify right side
    91,156.20x = 4,778,827,917.66
  5. Step 5: Solve for x
    x = 4,778,827,917.66/91,156.20
  6. Step 6: Final answer
    x = 52,424.61

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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.