Home / 212,062.07-292,646.25-121,419.43

Finding the Fourth Proportional to 212,062.07, 292,646.25 and 121,419.43

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Solution

The fourth proportional to 212,062.07, 292,646.25 and 121,419.43 is: 167,559.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,062.07 : 292,646.25 = 121,419.43 : x
  2. Step 2: Convert to fraction form
    212,062.07/292,646.25 = 121,419.43/x
  3. Step 3: Cross multiply
    212,062.07x = 292,646.25 × 121,419.43
  4. Step 4: Simplify right side
    212,062.07x = 35,532,940,866.64
  5. Step 5: Solve for x
    x = 35,532,940,866.64/212,062.07
  6. Step 6: Final answer
    x = 167,559.15

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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.