Home / 149,110.32-205,784.10-85,454.04

Finding the Fourth Proportional to 149,110.32, 205,784.10 and 85,454.04

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Solution

The fourth proportional to 149,110.32, 205,784.10 and 85,454.04 is: 117,933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,110.32 : 205,784.10 = 85,454.04 : x
  2. Step 2: Convert to fraction form
    149,110.32/205,784.10 = 85,454.04/x
  3. Step 3: Cross multiply
    149,110.32x = 205,784.10 × 85,454.04
  4. Step 4: Simplify right side
    149,110.32x = 17,585,082,712.76
  5. Step 5: Solve for x
    x = 17,585,082,712.76/149,110.32
  6. Step 6: Final answer
    x = 117,933.37

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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.