Home / 281,130.53-387,921.89-167,929.25

Finding the Fourth Proportional to 281,130.53, 387,921.89 and 167,929.25

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Solution

The fourth proportional to 281,130.53, 387,921.89 and 167,929.25 is: 231,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,130.53 : 387,921.89 = 167,929.25 : x
  2. Step 2: Convert to fraction form
    281,130.53/387,921.89 = 167,929.25/x
  3. Step 3: Cross multiply
    281,130.53x = 387,921.89 × 167,929.25
  4. Step 4: Simplify right side
    281,130.53x = 65,143,431,206.64
  5. Step 5: Solve for x
    x = 65,143,431,206.64/281,130.53
  6. Step 6: Final answer
    x = 231,719.52

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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.