Home / 149,509.23-206,321.23-81,526.04

Finding the Fourth Proportional to 149,509.23, 206,321.23 and 81,526.04

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Solution

The fourth proportional to 149,509.23, 206,321.23 and 81,526.04 is: 112,505.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,509.23 : 206,321.23 = 81,526.04 : x
  2. Step 2: Convert to fraction form
    149,509.23/206,321.23 = 81,526.04/x
  3. Step 3: Cross multiply
    149,509.23x = 206,321.23 × 81,526.04
  4. Step 4: Simplify right side
    149,509.23x = 16,820,552,849.83
  5. Step 5: Solve for x
    x = 16,820,552,849.83/149,509.23
  6. Step 6: Final answer
    x = 112,505.11

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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.