Home / 292,131.45-438,208.11-81,763.92

Finding the Fourth Proportional to 292,131.45, 438,208.11 and 81,763.92

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Solution

The fourth proportional to 292,131.45, 438,208.11 and 81,763.92 is: 122,648.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,131.45 : 438,208.11 = 81,763.92 : x
  2. Step 2: Convert to fraction form
    292,131.45/438,208.11 = 81,763.92/x
  3. Step 3: Cross multiply
    292,131.45x = 438,208.11 × 81,763.92
  4. Step 4: Simplify right side
    292,131.45x = 35,829,612,849.39
  5. Step 5: Solve for x
    x = 35,829,612,849.39/292,131.45
  6. Step 6: Final answer
    x = 122,648.94

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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.