Home / 124,811.09-172,219.19-71,097.15

Finding the Fourth Proportional to 124,811.09, 172,219.19 and 71,097.15

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Solution

The fourth proportional to 124,811.09, 172,219.19 and 71,097.15 is: 98,102.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,811.09 : 172,219.19 = 71,097.15 : x
  2. Step 2: Convert to fraction form
    124,811.09/172,219.19 = 71,097.15/x
  3. Step 3: Cross multiply
    124,811.09x = 172,219.19 × 71,097.15
  4. Step 4: Simplify right side
    124,811.09x = 12,244,293,228.82
  5. Step 5: Solve for x
    x = 12,244,293,228.82/124,811.09
  6. Step 6: Final answer
    x = 98,102.61

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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.