Home / 100,369.23-150,553.65-55,388.40

Finding the Fourth Proportional to 100,369.23, 150,553.65 and 55,388.40

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Solution

The fourth proportional to 100,369.23, 150,553.65 and 55,388.40 is: 83,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,369.23 : 150,553.65 = 55,388.40 : x
  2. Step 2: Convert to fraction form
    100,369.23/150,553.65 = 55,388.40/x
  3. Step 3: Cross multiply
    100,369.23x = 150,553.65 × 55,388.40
  4. Step 4: Simplify right side
    100,369.23x = 8,338,925,787.66
  5. Step 5: Solve for x
    x = 8,338,925,787.66/100,369.23
  6. Step 6: Final answer
    x = 83,082.49

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1.5x scale

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.