Home / 100,174.14-138,232.44-57,736.08

Finding the Fourth Proportional to 100,174.14, 138,232.44 and 57,736.08

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Solution

The fourth proportional to 100,174.14, 138,232.44 and 57,736.08 is: 79,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,174.14 : 138,232.44 = 57,736.08 : x
  2. Step 2: Convert to fraction form
    100,174.14/138,232.44 = 57,736.08/x
  3. Step 3: Cross multiply
    100,174.14x = 138,232.44 × 57,736.08
  4. Step 4: Simplify right side
    100,174.14x = 7,980,999,214.44
  5. Step 5: Solve for x
    x = 7,980,999,214.44/100,174.14
  6. Step 6: Final answer
    x = 79,671.25

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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.