Home / 180,768.09-249,474.90-100,220.88

Finding the Fourth Proportional to 180,768.09, 249,474.90 and 100,220.88

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Solution

The fourth proportional to 180,768.09, 249,474.90 and 100,220.88 is: 138,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,768.09 : 249,474.90 = 100,220.88 : x
  2. Step 2: Convert to fraction form
    180,768.09/249,474.90 = 100,220.88/x
  3. Step 3: Cross multiply
    180,768.09x = 249,474.90 × 100,220.88
  4. Step 4: Simplify right side
    180,768.09x = 25,002,594,015.91
  5. Step 5: Solve for x
    x = 25,002,594,015.91/180,768.09
  6. Step 6: Final answer
    x = 138,313.10

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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.