Home / 141,813.99-195,707.41-78,155.89

Finding the Fourth Proportional to 141,813.99, 195,707.41 and 78,155.89

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Solution

The fourth proportional to 141,813.99, 195,707.41 and 78,155.89 is: 107,857.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,813.99 : 195,707.41 = 78,155.89 : x
  2. Step 2: Convert to fraction form
    141,813.99/195,707.41 = 78,155.89/x
  3. Step 3: Cross multiply
    141,813.99x = 195,707.41 × 78,155.89
  4. Step 4: Simplify right side
    141,813.99x = 15,295,686,123.49
  5. Step 5: Solve for x
    x = 15,295,686,123.49/141,813.99
  6. Step 6: Final answer
    x = 107,857.39

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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.