Home / 212,830.35-293,705.78-122,192.16

Finding the Fourth Proportional to 212,830.35, 293,705.78 and 122,192.16

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Solution

The fourth proportional to 212,830.35, 293,705.78 and 122,192.16 is: 168,625.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,830.35 : 293,705.78 = 122,192.16 : x
  2. Step 2: Convert to fraction form
    212,830.35/293,705.78 = 122,192.16/x
  3. Step 3: Cross multiply
    212,830.35x = 293,705.78 × 122,192.16
  4. Step 4: Simplify right side
    212,830.35x = 35,888,542,499.64
  5. Step 5: Solve for x
    x = 35,888,542,499.64/212,830.35
  6. Step 6: Final answer
    x = 168,625.12

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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.