Home / 131,237.88-181,195.44-100,969.80

Finding the Fourth Proportional to 131,237.88, 181,195.44 and 100,969.80

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Solution

The fourth proportional to 131,237.88, 181,195.44 and 100,969.80 is: 139,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,237.88 : 181,195.44 = 100,969.80 : x
  2. Step 2: Convert to fraction form
    131,237.88/181,195.44 = 100,969.80/x
  3. Step 3: Cross multiply
    131,237.88x = 181,195.44 × 100,969.80
  4. Step 4: Simplify right side
    131,237.88x = 18,295,267,337.71
  5. Step 5: Solve for x
    x = 18,295,267,337.71/131,237.88
  6. Step 6: Final answer
    x = 139,405.39

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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.