Home / 106,310.36-159,485.16-43,985.72

Finding the Fourth Proportional to 106,310.36, 159,485.16 and 43,985.72

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Solution

The fourth proportional to 106,310.36, 159,485.16 and 43,985.72 is: 65,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,310.36 : 159,485.16 = 43,985.72 : x
  2. Step 2: Convert to fraction form
    106,310.36/159,485.16 = 43,985.72/x
  3. Step 3: Cross multiply
    106,310.36x = 159,485.16 × 43,985.72
  4. Step 4: Simplify right side
    106,310.36x = 7,015,069,591.92
  5. Step 5: Solve for x
    x = 7,015,069,591.92/106,310.36
  6. Step 6: Final answer
    x = 65,986.70

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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.