Home / 100,230.24-138,317.90-54,907.23

Finding the Fourth Proportional to 100,230.24, 138,317.90 and 54,907.23

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Solution

The fourth proportional to 100,230.24, 138,317.90 and 54,907.23 is: 75,772.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,230.24 : 138,317.90 = 54,907.23 : x
  2. Step 2: Convert to fraction form
    100,230.24/138,317.90 = 54,907.23/x
  3. Step 3: Cross multiply
    100,230.24x = 138,317.90 × 54,907.23
  4. Step 4: Simplify right side
    100,230.24x = 7,594,652,748.42
  5. Step 5: Solve for x
    x = 7,594,652,748.42/100,230.24
  6. Step 6: Final answer
    x = 75,772.07

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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.