Home / 115,129.15-172,398.48-97,414.45

Finding the Fourth Proportional to 115,129.15, 172,398.48 and 97,414.45

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Solution

The fourth proportional to 115,129.15, 172,398.48 and 97,414.45 is: 145,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,129.15 : 172,398.48 = 97,414.45 : x
  2. Step 2: Convert to fraction form
    115,129.15/172,398.48 = 97,414.45/x
  3. Step 3: Cross multiply
    115,129.15x = 172,398.48 × 97,414.45
  4. Step 4: Simplify right side
    115,129.15x = 16,794,102,313.74
  5. Step 5: Solve for x
    x = 16,794,102,313.74/115,129.15
  6. Step 6: Final answer
    x = 145,871.86

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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.