Home / 202,457.05-279,385.38-111,811.07

Finding the Fourth Proportional to 202,457.05, 279,385.38 and 111,811.07

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Solution

The fourth proportional to 202,457.05, 279,385.38 and 111,811.07 is: 154,296.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,457.05 : 279,385.38 = 111,811.07 : x
  2. Step 2: Convert to fraction form
    202,457.05/279,385.38 = 111,811.07/x
  3. Step 3: Cross multiply
    202,457.05x = 279,385.38 × 111,811.07
  4. Step 4: Simplify right side
    202,457.05x = 31,238,378,514.77
  5. Step 5: Solve for x
    x = 31,238,378,514.77/202,457.05
  6. Step 6: Final answer
    x = 154,296.32

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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.