Home / 149,440.51-206,226.55-81,457.48

Finding the Fourth Proportional to 149,440.51, 206,226.55 and 81,457.48

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Solution

The fourth proportional to 149,440.51, 206,226.55 and 81,457.48 is: 112,410.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,440.51 : 206,226.55 = 81,457.48 : x
  2. Step 2: Convert to fraction form
    149,440.51/206,226.55 = 81,457.48/x
  3. Step 3: Cross multiply
    149,440.51x = 206,226.55 × 81,457.48
  4. Step 4: Simplify right side
    149,440.51x = 16,798,694,352.88
  5. Step 5: Solve for x
    x = 16,798,694,352.88/149,440.51
  6. Step 6: Final answer
    x = 112,410.58

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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.