Home / 180,816.85-249,542.04-100,269.64

Finding the Fourth Proportional to 180,816.85, 249,542.04 and 100,269.64

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Solution

The fourth proportional to 180,816.85, 249,542.04 and 100,269.64 is: 138,380.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,816.85 : 249,542.04 = 100,269.64 : x
  2. Step 2: Convert to fraction form
    180,816.85/249,542.04 = 100,269.64/x
  3. Step 3: Cross multiply
    180,816.85x = 249,542.04 × 100,269.64
  4. Step 4: Simplify right side
    180,816.85x = 25,021,490,515.67
  5. Step 5: Solve for x
    x = 25,021,490,515.67/180,816.85
  6. Step 6: Final answer
    x = 138,380.30

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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.