Home / 215,013.34-322,401.54-102,721.84

Finding the Fourth Proportional to 215,013.34, 322,401.54 and 102,721.84

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Solution

The fourth proportional to 215,013.34, 322,401.54 and 102,721.84 is: 154,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,013.34 : 322,401.54 = 102,721.84 : x
  2. Step 2: Convert to fraction form
    215,013.34/322,401.54 = 102,721.84/x
  3. Step 3: Cross multiply
    215,013.34x = 322,401.54 × 102,721.84
  4. Step 4: Simplify right side
    215,013.34x = 33,117,679,407.63
  5. Step 5: Solve for x
    x = 33,117,679,407.63/215,013.34
  6. Step 6: Final answer
    x = 154,026.16

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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.