Home / 180,976.13-249,777.04-100,429.53

Finding the Fourth Proportional to 180,976.13, 249,777.04 and 100,429.53

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Solution

The fourth proportional to 180,976.13, 249,777.04 and 100,429.53 is: 138,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,976.13 : 249,777.04 = 100,429.53 : x
  2. Step 2: Convert to fraction form
    180,976.13/249,777.04 = 100,429.53/x
  3. Step 3: Cross multiply
    180,976.13x = 249,777.04 × 100,429.53
  4. Step 4: Simplify right side
    180,976.13x = 25,084,990,731.99
  5. Step 5: Solve for x
    x = 25,084,990,731.99/180,976.13
  6. Step 6: Final answer
    x = 138,609.39

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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.