Home / 143,322.64-197,791.95-79,661.50

Finding the Fourth Proportional to 143,322.64, 197,791.95 and 79,661.50

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Solution

The fourth proportional to 143,322.64, 197,791.95 and 79,661.50 is: 109,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,322.64 : 197,791.95 = 79,661.50 : x
  2. Step 2: Convert to fraction form
    143,322.64/197,791.95 = 79,661.50/x
  3. Step 3: Cross multiply
    143,322.64x = 197,791.95 × 79,661.50
  4. Step 4: Simplify right side
    143,322.64x = 15,756,403,424.93
  5. Step 5: Solve for x
    x = 15,756,403,424.93/143,322.64
  6. Step 6: Final answer
    x = 109,936.60

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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.