Home / 103,267.38-154,201.59-81,968.46

Finding the Fourth Proportional to 103,267.38, 154,201.59 and 81,968.46

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Solution

The fourth proportional to 103,267.38, 154,201.59 and 81,968.46 is: 122,397.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,267.38 : 154,201.59 = 81,968.46 : x
  2. Step 2: Convert to fraction form
    103,267.38/154,201.59 = 81,968.46/x
  3. Step 3: Cross multiply
    103,267.38x = 154,201.59 × 81,968.46
  4. Step 4: Simplify right side
    103,267.38x = 12,639,666,861.85
  5. Step 5: Solve for x
    x = 12,639,666,861.85/103,267.38
  6. Step 6: Final answer
    x = 122,397.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.