Home / 115,415.47-172,981.94-65,537.29

Finding the Fourth Proportional to 115,415.47, 172,981.94 and 65,537.29

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Solution

The fourth proportional to 115,415.47, 172,981.94 and 65,537.29 is: 98,225.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,415.47 : 172,981.94 = 65,537.29 : x
  2. Step 2: Convert to fraction form
    115,415.47/172,981.94 = 65,537.29/x
  3. Step 3: Cross multiply
    115,415.47x = 172,981.94 × 65,537.29
  4. Step 4: Simplify right side
    115,415.47x = 11,336,766,373.95
  5. Step 5: Solve for x
    x = 11,336,766,373.95/115,415.47
  6. Step 6: Final answer
    x = 98,225.71

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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.