Home / 215,973.10-323,959.65-103,634.20

Finding the Fourth Proportional to 215,973.10, 323,959.65 and 103,634.20

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Solution

The fourth proportional to 215,973.10, 323,959.65 and 103,634.20 is: 155,451.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,973.10 : 323,959.65 = 103,634.20 : x
  2. Step 2: Convert to fraction form
    215,973.10/323,959.65 = 103,634.20/x
  3. Step 3: Cross multiply
    215,973.10x = 323,959.65 × 103,634.20
  4. Step 4: Simplify right side
    215,973.10x = 33,573,299,160.03
  5. Step 5: Solve for x
    x = 33,573,299,160.03/215,973.10
  6. Step 6: Final answer
    x = 155,451.30

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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.