Home / 100,674.03-138,927.33-55,351.95

Finding the Fourth Proportional to 100,674.03, 138,927.33 and 55,351.95

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Solution

The fourth proportional to 100,674.03, 138,927.33 and 55,351.95 is: 76,384.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,674.03 : 138,927.33 = 55,351.95 : x
  2. Step 2: Convert to fraction form
    100,674.03/138,927.33 = 55,351.95/x
  3. Step 3: Cross multiply
    100,674.03x = 138,927.33 × 55,351.95
  4. Step 4: Simplify right side
    100,674.03x = 7,689,898,623.79
  5. Step 5: Solve for x
    x = 7,689,898,623.79/100,674.03
  6. Step 6: Final answer
    x = 76,384.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.