Home / 115,443.90-173,165.85-103,634.10

Finding the Fourth Proportional to 115,443.90, 173,165.85 and 103,634.10

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Solution

The fourth proportional to 115,443.90, 173,165.85 and 103,634.10 is: 155,451.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,443.90 : 173,165.85 = 103,634.10 : x
  2. Step 2: Convert to fraction form
    115,443.90/173,165.85 = 103,634.10/x
  3. Step 3: Cross multiply
    115,443.90x = 173,165.85 × 103,634.10
  4. Step 4: Simplify right side
    115,443.90x = 17,945,887,015.49
  5. Step 5: Solve for x
    x = 17,945,887,015.49/115,443.90
  6. Step 6: Final answer
    x = 155,451.15

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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.