Home / 154,146.51-212,528.62-117,892.43

Finding the Fourth Proportional to 154,146.51, 212,528.62 and 117,892.43

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Solution

The fourth proportional to 154,146.51, 212,528.62 and 117,892.43 is: 162,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,146.51 : 212,528.62 = 117,892.43 : x
  2. Step 2: Convert to fraction form
    154,146.51/212,528.62 = 117,892.43/x
  3. Step 3: Cross multiply
    154,146.51x = 212,528.62 × 117,892.43
  4. Step 4: Simplify right side
    154,146.51x = 25,055,516,135.03
  5. Step 5: Solve for x
    x = 25,055,516,135.03/154,146.51
  6. Step 6: Final answer
    x = 162,543.51

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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.