Home / 212,379.84-293,037.12-122,904

Finding the Fourth Proportional to 212,379.84, 293,037.12 and 122,904

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Solution

The fourth proportional to 212,379.84, 293,037.12 and 122,904 is: 169,580.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,379.84 : 293,037.12 = 122,904 : x
  2. Step 2: Convert to fraction form
    212,379.84/293,037.12 = 122,904/x
  3. Step 3: Cross multiply
    212,379.84x = 293,037.12 × 122,904
  4. Step 4: Simplify right side
    212,379.84x = 36,015,434,196.48
  5. Step 5: Solve for x
    x = 36,015,434,196.48/212,379.84
  6. Step 6: Final answer
    x = 169,580.29

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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.