Home / 100,467.36-138,651.84-58,029.12

Finding the Fourth Proportional to 100,467.36, 138,651.84 and 58,029.12

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Solution

The fourth proportional to 100,467.36, 138,651.84 and 58,029.12 is: 80,084.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,467.36 : 138,651.84 = 58,029.12 : x
  2. Step 2: Convert to fraction form
    100,467.36/138,651.84 = 58,029.12/x
  3. Step 3: Cross multiply
    100,467.36x = 138,651.84 × 58,029.12
  4. Step 4: Simplify right side
    100,467.36x = 8,045,844,261.58
  5. Step 5: Solve for x
    x = 8,045,844,261.58/100,467.36
  6. Step 6: Final answer
    x = 80,084.16

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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.