Home / 149,407.14-206,178.30-81,426.27

Finding the Fourth Proportional to 149,407.14, 206,178.30 and 81,426.27

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Solution

The fourth proportional to 149,407.14, 206,178.30 and 81,426.27 is: 112,366.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,407.14 : 206,178.30 = 81,426.27 : x
  2. Step 2: Convert to fraction form
    149,407.14/206,178.30 = 81,426.27/x
  3. Step 3: Cross multiply
    149,407.14x = 206,178.30 × 81,426.27
  4. Step 4: Simplify right side
    149,407.14x = 16,788,329,923.94
  5. Step 5: Solve for x
    x = 16,788,329,923.94/149,407.14
  6. Step 6: Final answer
    x = 112,366.32

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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.