Home / 212,920.53-293,928.72-131,263.37

Finding the Fourth Proportional to 212,920.53, 293,928.72 and 131,263.37

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Solution

The fourth proportional to 212,920.53, 293,928.72 and 131,263.37 is: 181,204.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,920.53 : 293,928.72 = 131,263.37 : x
  2. Step 2: Convert to fraction form
    212,920.53/293,928.72 = 131,263.37/x
  3. Step 3: Cross multiply
    212,920.53x = 293,928.72 × 131,263.37
  4. Step 4: Simplify right side
    212,920.53x = 38,582,072,857.34
  5. Step 5: Solve for x
    x = 38,582,072,857.34/212,920.53
  6. Step 6: Final answer
    x = 181,204.10

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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.