Home / 102,798.20-154,082.10-43,623.80

Finding the Fourth Proportional to 102,798.20, 154,082.10 and 43,623.80

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Solution

The fourth proportional to 102,798.20, 154,082.10 and 43,623.80 is: 65,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,798.20 : 154,082.10 = 43,623.80 : x
  2. Step 2: Convert to fraction form
    102,798.20/154,082.10 = 43,623.80/x
  3. Step 3: Cross multiply
    102,798.20x = 154,082.10 × 43,623.80
  4. Step 4: Simplify right side
    102,798.20x = 6,721,646,713.98
  5. Step 5: Solve for x
    x = 6,721,646,713.98/102,798.20
  6. Step 6: Final answer
    x = 65,386.81

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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.