Home / 180,698.29-249,363.39-100,131.03

Finding the Fourth Proportional to 180,698.29, 249,363.39 and 100,131.03

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Solution

The fourth proportional to 180,698.29, 249,363.39 and 100,131.03 is: 138,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,698.29 : 249,363.39 = 100,131.03 : x
  2. Step 2: Convert to fraction form
    180,698.29/249,363.39 = 100,131.03/x
  3. Step 3: Cross multiply
    180,698.29x = 249,363.39 × 100,131.03
  4. Step 4: Simplify right side
    180,698.29x = 24,969,013,084.99
  5. Step 5: Solve for x
    x = 24,969,013,084.99/180,698.29
  6. Step 6: Final answer
    x = 138,180.68

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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.