Home / 115,385.31-173,118.87-52,219.08

Finding the Fourth Proportional to 115,385.31, 173,118.87 and 52,219.08

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Solution

The fourth proportional to 115,385.31, 173,118.87 and 52,219.08 is: 78,347.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,385.31 : 173,118.87 = 52,219.08 : x
  2. Step 2: Convert to fraction form
    115,385.31/173,118.87 = 52,219.08/x
  3. Step 3: Cross multiply
    115,385.31x = 173,118.87 × 52,219.08
  4. Step 4: Simplify right side
    115,385.31x = 9,040,108,122.04
  5. Step 5: Solve for x
    x = 9,040,108,122.04/115,385.31
  6. Step 6: Final answer
    x = 78,347.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.