Home / 203,111.23-280,290.08-112,465.25

Finding the Fourth Proportional to 203,111.23, 280,290.08 and 112,465.25

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Solution

The fourth proportional to 203,111.23, 280,290.08 and 112,465.25 is: 155,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,111.23 : 280,290.08 = 112,465.25 : x
  2. Step 2: Convert to fraction form
    203,111.23/280,290.08 = 112,465.25/x
  3. Step 3: Cross multiply
    203,111.23x = 280,290.08 × 112,465.25
  4. Step 4: Simplify right side
    203,111.23x = 31,522,893,614.52
  5. Step 5: Solve for x
    x = 31,522,893,614.52/203,111.23
  6. Step 6: Final answer
    x = 155,200.15

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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.