Home / 207,853.17-312,279.12-133,118.52

Finding the Fourth Proportional to 207,853.17, 312,279.12 and 133,118.52

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Solution

The fourth proportional to 207,853.17, 312,279.12 and 133,118.52 is: 199,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,853.17 : 312,279.12 = 133,118.52 : x
  2. Step 2: Convert to fraction form
    207,853.17/312,279.12 = 133,118.52/x
  3. Step 3: Cross multiply
    207,853.17x = 312,279.12 × 133,118.52
  4. Step 4: Simplify right side
    207,853.17x = 41,570,134,281.30
  5. Step 5: Solve for x
    x = 41,570,134,281.30/207,853.17
  6. Step 6: Final answer
    x = 199,997.60

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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.