Home / 212,434.08-293,162.76-115,640.72

Finding the Fourth Proportional to 212,434.08, 293,162.76 and 115,640.72

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Solution

The fourth proportional to 212,434.08, 293,162.76 and 115,640.72 is: 159,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,434.08 : 293,162.76 = 115,640.72 : x
  2. Step 2: Convert to fraction form
    212,434.08/293,162.76 = 115,640.72/x
  3. Step 3: Cross multiply
    212,434.08x = 293,162.76 × 115,640.72
  4. Step 4: Simplify right side
    212,434.08x = 33,901,551,910.68
  5. Step 5: Solve for x
    x = 33,901,551,910.68/212,434.08
  6. Step 6: Final answer
    x = 159,586.22

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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.