Home / 203,001.47-280,138.62-112,355.49

Finding the Fourth Proportional to 203,001.47, 280,138.62 and 112,355.49

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Solution

The fourth proportional to 203,001.47, 280,138.62 and 112,355.49 is: 155,048.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,001.47 : 280,138.62 = 112,355.49 : x
  2. Step 2: Convert to fraction form
    203,001.47/280,138.62 = 112,355.49/x
  3. Step 3: Cross multiply
    203,001.47x = 280,138.62 × 112,355.49
  4. Step 4: Simplify right side
    203,001.47x = 31,475,111,918.02
  5. Step 5: Solve for x
    x = 31,475,111,918.02/203,001.47
  6. Step 6: Final answer
    x = 155,048.69

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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.