Home / 100,252.68-138,347.04-54,930.24

Finding the Fourth Proportional to 100,252.68, 138,347.04 and 54,930.24

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Solution

The fourth proportional to 100,252.68, 138,347.04 and 54,930.24 is: 75,802.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,252.68 : 138,347.04 = 54,930.24 : x
  2. Step 2: Convert to fraction form
    100,252.68/138,347.04 = 54,930.24/x
  3. Step 3: Cross multiply
    100,252.68x = 138,347.04 × 54,930.24
  4. Step 4: Simplify right side
    100,252.68x = 7,599,436,110.49
  5. Step 5: Solve for x
    x = 7,599,436,110.49/100,252.68
  6. Step 6: Final answer
    x = 75,802.82

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1.5x scale

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.