Home / 202,219.96-279,065.05-111,579.29

Finding the Fourth Proportional to 202,219.96, 279,065.05 and 111,579.29

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Solution

The fourth proportional to 202,219.96, 279,065.05 and 111,579.29 is: 153,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,219.96 : 279,065.05 = 111,579.29 : x
  2. Step 2: Convert to fraction form
    202,219.96/279,065.05 = 111,579.29/x
  3. Step 3: Cross multiply
    202,219.96x = 279,065.05 × 111,579.29
  4. Step 4: Simplify right side
    202,219.96x = 31,137,879,515.04
  5. Step 5: Solve for x
    x = 31,137,879,515.04/202,219.96
  6. Step 6: Final answer
    x = 153,980.25

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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.