Home / 115,411.95-173,013.44-45,272.43

Finding the Fourth Proportional to 115,411.95, 173,013.44 and 45,272.43

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Solution

The fourth proportional to 115,411.95, 173,013.44 and 45,272.43 is: 67,867.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,411.95 : 173,013.44 = 45,272.43 : x
  2. Step 2: Convert to fraction form
    115,411.95/173,013.44 = 45,272.43/x
  3. Step 3: Cross multiply
    115,411.95x = 173,013.44 × 45,272.43
  4. Step 4: Simplify right side
    115,411.95x = 7,832,738,625.10
  5. Step 5: Solve for x
    x = 7,832,738,625.10/115,411.95
  6. Step 6: Final answer
    x = 67,867.66

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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.