Home / 203,555.76-280,907.19-118,689.23

Finding the Fourth Proportional to 203,555.76, 280,907.19 and 118,689.23

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Solution

The fourth proportional to 203,555.76, 280,907.19 and 118,689.23 is: 163,791.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,555.76 : 280,907.19 = 118,689.23 : x
  2. Step 2: Convert to fraction form
    203,555.76/280,907.19 = 118,689.23/x
  3. Step 3: Cross multiply
    203,555.76x = 280,907.19 × 118,689.23
  4. Step 4: Simplify right side
    203,555.76x = 33,340,656,678.03
  5. Step 5: Solve for x
    x = 33,340,656,678.03/203,555.76
  6. Step 6: Final answer
    x = 163,791.27

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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.