Home / 109,504.36-151,121.16-61,756.72

Finding the Fourth Proportional to 109,504.36, 151,121.16 and 61,756.72

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Solution

The fourth proportional to 109,504.36, 151,121.16 and 61,756.72 is: 85,227.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,504.36 : 151,121.16 = 61,756.72 : x
  2. Step 2: Convert to fraction form
    109,504.36/151,121.16 = 61,756.72/x
  3. Step 3: Cross multiply
    109,504.36x = 151,121.16 × 61,756.72
  4. Step 4: Simplify right side
    109,504.36x = 9,332,747,164.20
  5. Step 5: Solve for x
    x = 9,332,747,164.20/109,504.36
  6. Step 6: Final answer
    x = 85,227.17

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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.