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Finding the Fourth Proportional to 149,012.55, 205,713.51 and 114,944.58

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Solution

The fourth proportional to 149,012.55, 205,713.51 and 114,944.58 is: 158,682.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,012.55 : 205,713.51 = 114,944.58 : x
  2. Step 2: Convert to fraction form
    149,012.55/205,713.51 = 114,944.58/x
  3. Step 3: Cross multiply
    149,012.55x = 205,713.51 × 114,944.58
  4. Step 4: Simplify right side
    149,012.55x = 23,645,653,007.28
  5. Step 5: Solve for x
    x = 23,645,653,007.28/149,012.55
  6. Step 6: Final answer
    x = 158,682.29

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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.