Home / 212,784.72-293,560.48-122,107.92

Finding the Fourth Proportional to 212,784.72, 293,560.48 and 122,107.92

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Solution

The fourth proportional to 212,784.72, 293,560.48 and 122,107.92 is: 168,461.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,784.72 : 293,560.48 = 122,107.92 : x
  2. Step 2: Convert to fraction form
    212,784.72/293,560.48 = 122,107.92/x
  3. Step 3: Cross multiply
    212,784.72x = 293,560.48 × 122,107.92
  4. Step 4: Simplify right side
    212,784.72x = 35,846,059,607.00
  5. Step 5: Solve for x
    x = 35,846,059,607.00/212,784.72
  6. Step 6: Final answer
    x = 168,461.62

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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.