Home / 149,750.94-206,664.71-81,774.24

Finding the Fourth Proportional to 149,750.94, 206,664.71 and 81,774.24

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Solution

The fourth proportional to 149,750.94, 206,664.71 and 81,774.24 is: 112,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,750.94 : 206,664.71 = 81,774.24 : x
  2. Step 2: Convert to fraction form
    149,750.94/206,664.71 = 81,774.24/x
  3. Step 3: Cross multiply
    149,750.94x = 206,664.71 × 81,774.24
  4. Step 4: Simplify right side
    149,750.94x = 16,899,848,411.21
  5. Step 5: Solve for x
    x = 16,899,848,411.21/149,750.94
  6. Step 6: Final answer
    x = 112,853.03

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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.