Home / 103,447.71-142,723.50-58,119.41

Finding the Fourth Proportional to 103,447.71, 142,723.50 and 58,119.41

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Solution

The fourth proportional to 103,447.71, 142,723.50 and 58,119.41 is: 80,185.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,447.71 : 142,723.50 = 58,119.41 : x
  2. Step 2: Convert to fraction form
    103,447.71/142,723.50 = 58,119.41/x
  3. Step 3: Cross multiply
    103,447.71x = 142,723.50 × 58,119.41
  4. Step 4: Simplify right side
    103,447.71x = 8,295,004,899.52
  5. Step 5: Solve for x
    x = 8,295,004,899.52/103,447.71
  6. Step 6: Final answer
    x = 80,185.49

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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.