Home / 202,539.05-279,509.53-111,900.86

Finding the Fourth Proportional to 202,539.05, 279,509.53 and 111,900.86

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Solution

The fourth proportional to 202,539.05, 279,509.53 and 111,900.86 is: 154,426.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,539.05 : 279,509.53 = 111,900.86 : x
  2. Step 2: Convert to fraction form
    202,539.05/279,509.53 = 111,900.86/x
  3. Step 3: Cross multiply
    202,539.05x = 279,509.53 × 111,900.86
  4. Step 4: Simplify right side
    202,539.05x = 31,277,355,387.65
  5. Step 5: Solve for x
    x = 31,277,355,387.65/202,539.05
  6. Step 6: Final answer
    x = 154,426.30

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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.