Home / 202,980.12-280,105.44-112,336.26

Finding the Fourth Proportional to 202,980.12, 280,105.44 and 112,336.26

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Solution

The fourth proportional to 202,980.12, 280,105.44 and 112,336.26 is: 155,020.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,980.12 : 280,105.44 = 112,336.26 : x
  2. Step 2: Convert to fraction form
    202,980.12/280,105.44 = 112,336.26/x
  3. Step 3: Cross multiply
    202,980.12x = 280,105.44 × 112,336.26
  4. Step 4: Simplify right side
    202,980.12x = 31,465,997,535.25
  5. Step 5: Solve for x
    x = 31,465,997,535.25/202,980.12
  6. Step 6: Final answer
    x = 155,020.10

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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.