Home / 109,185.74-150,664.11-61,455.50

Finding the Fourth Proportional to 109,185.74, 150,664.11 and 61,455.50

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Solution

The fourth proportional to 109,185.74, 150,664.11 and 61,455.50 is: 84,801.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,185.74 : 150,664.11 = 61,455.50 : x
  2. Step 2: Convert to fraction form
    109,185.74/150,664.11 = 61,455.50/x
  3. Step 3: Cross multiply
    109,185.74x = 150,664.11 × 61,455.50
  4. Step 4: Simplify right side
    109,185.74x = 9,259,138,212.11
  5. Step 5: Solve for x
    x = 9,259,138,212.11/109,185.74
  6. Step 6: Final answer
    x = 84,801.72

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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.