Home / 109,943.80-151,729.15-61,544.78

Finding the Fourth Proportional to 109,943.80, 151,729.15 and 61,544.78

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Solution

The fourth proportional to 109,943.80, 151,729.15 and 61,544.78 is: 84,935.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,943.80 : 151,729.15 = 61,544.78 : x
  2. Step 2: Convert to fraction form
    109,943.80/151,729.15 = 61,544.78/x
  3. Step 3: Cross multiply
    109,943.80x = 151,729.15 × 61,544.78
  4. Step 4: Simplify right side
    109,943.80x = 9,338,136,928.21
  5. Step 5: Solve for x
    x = 9,338,136,928.21/109,943.80
  6. Step 6: Final answer
    x = 84,935.55

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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.