Home / 203,078.16-280,258.18-112,444.08

Finding the Fourth Proportional to 203,078.16, 280,258.18 and 112,444.08

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Solution

The fourth proportional to 203,078.16, 280,258.18 and 112,444.08 is: 155,178.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,078.16 : 280,258.18 = 112,444.08 : x
  2. Step 2: Convert to fraction form
    203,078.16/280,258.18 = 112,444.08/x
  3. Step 3: Cross multiply
    203,078.16x = 280,258.18 × 112,444.08
  4. Step 4: Simplify right side
    203,078.16x = 31,513,373,212.57
  5. Step 5: Solve for x
    x = 31,513,373,212.57/203,078.16
  6. Step 6: Final answer
    x = 155,178.54

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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.