Home / 103,317.66-142,580.45-57,998.97

Finding the Fourth Proportional to 103,317.66, 142,580.45 and 57,998.97

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Solution

The fourth proportional to 103,317.66, 142,580.45 and 57,998.97 is: 80,039.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,317.66 : 142,580.45 = 57,998.97 : x
  2. Step 2: Convert to fraction form
    103,317.66/142,580.45 = 57,998.97/x
  3. Step 3: Cross multiply
    103,317.66x = 142,580.45 × 57,998.97
  4. Step 4: Simplify right side
    103,317.66x = 8,269,519,387.13
  5. Step 5: Solve for x
    x = 8,269,519,387.13/103,317.66
  6. Step 6: Final answer
    x = 80,039.75

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1.5x scale

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.