Home / 215,838.90-323,573.75-82,814.63

Finding the Fourth Proportional to 215,838.90, 323,573.75 and 82,814.63

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Solution

The fourth proportional to 215,838.90, 323,573.75 and 82,814.63 is: 124,151.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,838.90 : 323,573.75 = 82,814.63 : x
  2. Step 2: Convert to fraction form
    215,838.90/323,573.75 = 82,814.63/x
  3. Step 3: Cross multiply
    215,838.90x = 323,573.75 × 82,814.63
  4. Step 4: Simplify right side
    215,838.90x = 26,796,638,662.58
  5. Step 5: Solve for x
    x = 26,796,638,662.58/215,838.90
  6. Step 6: Final answer
    x = 124,151.11

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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.