Home / 212,144.45-292,686.50-131,542.97

Finding the Fourth Proportional to 212,144.45, 292,686.50 and 131,542.97

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Solution

The fourth proportional to 212,144.45, 292,686.50 and 131,542.97 is: 181,484.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,144.45 : 292,686.50 = 131,542.97 : x
  2. Step 2: Convert to fraction form
    212,144.45/292,686.50 = 131,542.97/x
  3. Step 3: Cross multiply
    212,144.45x = 292,686.50 × 131,542.97
  4. Step 4: Simplify right side
    212,144.45x = 38,500,850,831.19
  5. Step 5: Solve for x
    x = 38,500,850,831.19/212,144.45
  6. Step 6: Final answer
    x = 181,484.13

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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.