Home / 208,723.43-312,828.55-96,247.51

Finding the Fourth Proportional to 208,723.43, 312,828.55 and 96,247.51

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Solution

The fourth proportional to 208,723.43, 312,828.55 and 96,247.51 is: 144,252.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,723.43 : 312,828.55 = 96,247.51 : x
  2. Step 2: Convert to fraction form
    208,723.43/312,828.55 = 96,247.51/x
  3. Step 3: Cross multiply
    208,723.43x = 312,828.55 × 96,247.51
  4. Step 4: Simplify right side
    208,723.43x = 30,108,967,971.72
  5. Step 5: Solve for x
    x = 30,108,967,971.72/208,723.43
  6. Step 6: Final answer
    x = 144,252.94

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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.