Home / 131,863.34-181,972.27-71,433.93

Finding the Fourth Proportional to 131,863.34, 181,972.27 and 71,433.93

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Solution

The fourth proportional to 131,863.34, 181,972.27 and 71,433.93 is: 98,579.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,863.34 : 181,972.27 = 71,433.93 : x
  2. Step 2: Convert to fraction form
    131,863.34/181,972.27 = 71,433.93/x
  3. Step 3: Cross multiply
    131,863.34x = 181,972.27 × 71,433.93
  4. Step 4: Simplify right side
    131,863.34x = 12,998,995,168.81
  5. Step 5: Solve for x
    x = 12,998,995,168.81/131,863.34
  6. Step 6: Final answer
    x = 98,579.29

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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.