Home / 149,140.07-205,813.32-82,072.07

Finding the Fourth Proportional to 149,140.07, 205,813.32 and 82,072.07

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Solution

The fourth proportional to 149,140.07, 205,813.32 and 82,072.07 is: 113,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,140.07 : 205,813.32 = 82,072.07 : x
  2. Step 2: Convert to fraction form
    149,140.07/205,813.32 = 82,072.07/x
  3. Step 3: Cross multiply
    149,140.07x = 205,813.32 × 82,072.07
  4. Step 4: Simplify right side
    149,140.07x = 16,891,524,176.91
  5. Step 5: Solve for x
    x = 16,891,524,176.91/149,140.07
  6. Step 6: Final answer
    x = 113,259.47

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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.