Home / 212,060.81-292,644.54-121,418.17

Finding the Fourth Proportional to 212,060.81, 292,644.54 and 121,418.17

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Solution

The fourth proportional to 212,060.81, 292,644.54 and 121,418.17 is: 167,557.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,060.81 : 292,644.54 = 121,418.17 : x
  2. Step 2: Convert to fraction form
    212,060.81/292,644.54 = 121,418.17/x
  3. Step 3: Cross multiply
    212,060.81x = 292,644.54 × 121,418.17
  4. Step 4: Simplify right side
    212,060.81x = 35,532,363,775.68
  5. Step 5: Solve for x
    x = 35,532,363,775.68/212,060.81
  6. Step 6: Final answer
    x = 167,557.43

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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.