Home / 212,061.07-292,644.87-121,418.43

Finding the Fourth Proportional to 212,061.07, 292,644.87 and 121,418.43

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Solution

The fourth proportional to 212,061.07, 292,644.87 and 121,418.43 is: 167,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,061.07 : 292,644.87 = 121,418.43 : x
  2. Step 2: Convert to fraction form
    212,061.07/292,644.87 = 121,418.43/x
  3. Step 3: Cross multiply
    212,061.07x = 292,644.87 × 121,418.43
  4. Step 4: Simplify right side
    212,061.07x = 35,532,480,662.95
  5. Step 5: Solve for x
    x = 35,532,480,662.95/212,061.07
  6. Step 6: Final answer
    x = 167,557.77

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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.