Home / 154,623.31-213,343.19-90,053.35

Finding the Fourth Proportional to 154,623.31, 213,343.19 and 90,053.35

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Solution

The fourth proportional to 154,623.31, 213,343.19 and 90,053.35 is: 124,252.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,623.31 : 213,343.19 = 90,053.35 : x
  2. Step 2: Convert to fraction form
    154,623.31/213,343.19 = 90,053.35/x
  3. Step 3: Cross multiply
    154,623.31x = 213,343.19 × 90,053.35
  4. Step 4: Simplify right side
    154,623.31x = 19,212,268,959.19
  5. Step 5: Solve for x
    x = 19,212,268,959.19/154,623.31
  6. Step 6: Final answer
    x = 124,252.09

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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.