Home / 203,485.04-280,801.56-112,844.72

Finding the Fourth Proportional to 203,485.04, 280,801.56 and 112,844.72

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Solution

The fourth proportional to 203,485.04, 280,801.56 and 112,844.72 is: 155,721.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,485.04 : 280,801.56 = 112,844.72 : x
  2. Step 2: Convert to fraction form
    203,485.04/280,801.56 = 112,844.72/x
  3. Step 3: Cross multiply
    203,485.04x = 280,801.56 × 112,844.72
  4. Step 4: Simplify right side
    203,485.04x = 31,686,973,413.76
  5. Step 5: Solve for x
    x = 31,686,973,413.76/203,485.04
  6. Step 6: Final answer
    x = 155,721.39

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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.