Home / 149,579.04-206,418.27-81,594.90

Finding the Fourth Proportional to 149,579.04, 206,418.27 and 81,594.90

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Solution

The fourth proportional to 149,579.04, 206,418.27 and 81,594.90 is: 112,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,579.04 : 206,418.27 = 81,594.90 : x
  2. Step 2: Convert to fraction form
    149,579.04/206,418.27 = 81,594.90/x
  3. Step 3: Cross multiply
    149,579.04x = 206,418.27 × 81,594.90
  4. Step 4: Simplify right side
    149,579.04x = 16,842,678,098.82
  5. Step 5: Solve for x
    x = 16,842,678,098.82/149,579.04
  6. Step 6: Final answer
    x = 112,600.52

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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.