Home / 149,145.24-205,825.32-85,495.08

Finding the Fourth Proportional to 149,145.24, 205,825.32 and 85,495.08

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Solution

The fourth proportional to 149,145.24, 205,825.32 and 85,495.08 is: 117,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,145.24 : 205,825.32 = 85,495.08 : x
  2. Step 2: Convert to fraction form
    149,145.24/205,825.32 = 85,495.08/x
  3. Step 3: Cross multiply
    149,145.24x = 205,825.32 × 85,495.08
  4. Step 4: Simplify right side
    149,145.24x = 17,597,052,199.43
  5. Step 5: Solve for x
    x = 17,597,052,199.43/149,145.24
  6. Step 6: Final answer
    x = 117,986.01

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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.