Home / 102,363.21-141,242.54-57,040.07

Finding the Fourth Proportional to 102,363.21, 141,242.54 and 57,040.07

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Solution

The fourth proportional to 102,363.21, 141,242.54 and 57,040.07 is: 78,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,363.21 : 141,242.54 = 57,040.07 : x
  2. Step 2: Convert to fraction form
    102,363.21/141,242.54 = 57,040.07/x
  3. Step 3: Cross multiply
    102,363.21x = 141,242.54 × 57,040.07
  4. Step 4: Simplify right side
    102,363.21x = 8,056,483,377.16
  5. Step 5: Solve for x
    x = 8,056,483,377.16/102,363.21
  6. Step 6: Final answer
    x = 78,704.87

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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.