Home / 154,798.29-213,665.85-91,172.79

Finding the Fourth Proportional to 154,798.29, 213,665.85 and 91,172.79

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Solution

The fourth proportional to 154,798.29, 213,665.85 and 91,172.79 is: 125,844.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,798.29 : 213,665.85 = 91,172.79 : x
  2. Step 2: Convert to fraction form
    154,798.29/213,665.85 = 91,172.79/x
  3. Step 3: Cross multiply
    154,798.29x = 213,665.85 × 91,172.79
  4. Step 4: Simplify right side
    154,798.29x = 19,480,511,672.22
  5. Step 5: Solve for x
    x = 19,480,511,672.22/154,798.29
  6. Step 6: Final answer
    x = 125,844.49

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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.