Home / 103,931.97-143,426.22-56,185.32

Finding the Fourth Proportional to 103,931.97, 143,426.22 and 56,185.32

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Solution

The fourth proportional to 103,931.97, 143,426.22 and 56,185.32 is: 77,535.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,931.97 : 143,426.22 = 56,185.32 : x
  2. Step 2: Convert to fraction form
    103,931.97/143,426.22 = 56,185.32/x
  3. Step 3: Cross multiply
    103,931.97x = 143,426.22 × 56,185.32
  4. Step 4: Simplify right side
    103,931.97x = 8,058,448,067.09
  5. Step 5: Solve for x
    x = 8,058,448,067.09/103,931.97
  6. Step 6: Final answer
    x = 77,535.80

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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.