Home / 102,508.12-141,463.02-57,187

Finding the Fourth Proportional to 102,508.12, 141,463.02 and 57,187

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Solution

The fourth proportional to 102,508.12, 141,463.02 and 57,187 is: 78,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,508.12 : 141,463.02 = 57,187 : x
  2. Step 2: Convert to fraction form
    102,508.12/141,463.02 = 57,187/x
  3. Step 3: Cross multiply
    102,508.12x = 141,463.02 × 57,187
  4. Step 4: Simplify right side
    102,508.12x = 8,089,845,724.74
  5. Step 5: Solve for x
    x = 8,089,845,724.74/102,508.12
  6. Step 6: Final answer
    x = 78,919.07

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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.