Home / 180,907.04-249,621.80-100,321.76

Finding the Fourth Proportional to 180,907.04, 249,621.80 and 100,321.76

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Solution

The fourth proportional to 180,907.04, 249,621.80 and 100,321.76 is: 138,427.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,907.04 : 249,621.80 = 100,321.76 : x
  2. Step 2: Convert to fraction form
    180,907.04/249,621.80 = 100,321.76/x
  3. Step 3: Cross multiply
    180,907.04x = 249,621.80 × 100,321.76
  4. Step 4: Simplify right side
    180,907.04x = 25,042,498,310.37
  5. Step 5: Solve for x
    x = 25,042,498,310.37/180,907.04
  6. Step 6: Final answer
    x = 138,427.44

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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.