Home / 142,136.87-196,140.44-77,593.24

Finding the Fourth Proportional to 142,136.87, 196,140.44 and 77,593.24

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Solution

The fourth proportional to 142,136.87, 196,140.44 and 77,593.24 is: 107,074.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,136.87 : 196,140.44 = 77,593.24 : x
  2. Step 2: Convert to fraction form
    142,136.87/196,140.44 = 77,593.24/x
  3. Step 3: Cross multiply
    142,136.87x = 196,140.44 × 77,593.24
  4. Step 4: Simplify right side
    142,136.87x = 15,219,172,234.63
  5. Step 5: Solve for x
    x = 15,219,172,234.63/142,136.87
  6. Step 6: Final answer
    x = 107,074.06

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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.