Home / 103,756.41-143,197.47-58,443.30

Finding the Fourth Proportional to 103,756.41, 143,197.47 and 58,443.30

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Solution

The fourth proportional to 103,756.41, 143,197.47 and 58,443.30 is: 80,659.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,756.41 : 143,197.47 = 58,443.30 : x
  2. Step 2: Convert to fraction form
    103,756.41/143,197.47 = 58,443.30/x
  3. Step 3: Cross multiply
    103,756.41x = 143,197.47 × 58,443.30
  4. Step 4: Simplify right side
    103,756.41x = 8,368,932,698.45
  5. Step 5: Solve for x
    x = 8,368,932,698.45/103,756.41
  6. Step 6: Final answer
    x = 80,659.43

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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.