Home / 281,032.08-421,326.66-103,442.22

Finding the Fourth Proportional to 281,032.08, 421,326.66 and 103,442.22

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Solution

The fourth proportional to 281,032.08, 421,326.66 and 103,442.22 is: 155,081.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,032.08 : 421,326.66 = 103,442.22 : x
  2. Step 2: Convert to fraction form
    281,032.08/421,326.66 = 103,442.22/x
  3. Step 3: Cross multiply
    281,032.08x = 421,326.66 × 103,442.22
  4. Step 4: Simplify right side
    281,032.08x = 43,582,965,055.59
  5. Step 5: Solve for x
    x = 43,582,965,055.59/281,032.08
  6. Step 6: Final answer
    x = 155,081.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.