Home / 131,455.38-181,408.42-71,026.04

Finding the Fourth Proportional to 131,455.38, 181,408.42 and 71,026.04

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Solution

The fourth proportional to 131,455.38, 181,408.42 and 71,026.04 is: 98,015.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,455.38 : 181,408.42 = 71,026.04 : x
  2. Step 2: Convert to fraction form
    131,455.38/181,408.42 = 71,026.04/x
  3. Step 3: Cross multiply
    131,455.38x = 181,408.42 × 71,026.04
  4. Step 4: Simplify right side
    131,455.38x = 12,884,721,695.26
  5. Step 5: Solve for x
    x = 12,884,721,695.26/131,455.38
  6. Step 6: Final answer
    x = 98,015.93

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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.