Home / 109,113.44-150,564.32-61,365.78

Finding the Fourth Proportional to 109,113.44, 150,564.32 and 61,365.78

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Solution

The fourth proportional to 109,113.44, 150,564.32 and 61,365.78 is: 84,677.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,113.44 : 150,564.32 = 61,365.78 : x
  2. Step 2: Convert to fraction form
    109,113.44/150,564.32 = 61,365.78/x
  3. Step 3: Cross multiply
    109,113.44x = 150,564.32 × 61,365.78
  4. Step 4: Simplify right side
    109,113.44x = 9,239,496,936.97
  5. Step 5: Solve for x
    x = 9,239,496,936.97/109,113.44
  6. Step 6: Final answer
    x = 84,677.90

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1.5x scale

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.