Home / 202,020.65-278,790.44-111,380.13

Finding the Fourth Proportional to 202,020.65, 278,790.44 and 111,380.13

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Solution

The fourth proportional to 202,020.65, 278,790.44 and 111,380.13 is: 153,705.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,020.65 : 278,790.44 = 111,380.13 : x
  2. Step 2: Convert to fraction form
    202,020.65/278,790.44 = 111,380.13/x
  3. Step 3: Cross multiply
    202,020.65x = 278,790.44 × 111,380.13
  4. Step 4: Simplify right side
    202,020.65x = 31,051,714,893.06
  5. Step 5: Solve for x
    x = 31,051,714,893.06/202,020.65
  6. Step 6: Final answer
    x = 153,705.65

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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.