Home / 208,270.17-312,340.62-75,133.07

Finding the Fourth Proportional to 208,270.17, 312,340.62 and 75,133.07

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Solution

The fourth proportional to 208,270.17, 312,340.62 and 75,133.07 is: 112,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,270.17 : 312,340.62 = 75,133.07 : x
  2. Step 2: Convert to fraction form
    208,270.17/312,340.62 = 75,133.07/x
  3. Step 3: Cross multiply
    208,270.17x = 312,340.62 × 75,133.07
  4. Step 4: Simplify right side
    208,270.17x = 23,467,109,557.63
  5. Step 5: Solve for x
    x = 23,467,109,557.63/208,270.17
  6. Step 6: Final answer
    x = 112,676.29

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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.