Home / 190,519.20-285,764.18-70,519.82

Finding the Fourth Proportional to 190,519.20, 285,764.18 and 70,519.82

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Solution

The fourth proportional to 190,519.20, 285,764.18 and 70,519.82 is: 105,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,519.20 : 285,764.18 = 70,519.82 : x
  2. Step 2: Convert to fraction form
    190,519.20/285,764.18 = 70,519.82/x
  3. Step 3: Cross multiply
    190,519.20x = 285,764.18 × 70,519.82
  4. Step 4: Simplify right side
    190,519.20x = 20,152,037,399.22
  5. Step 5: Solve for x
    x = 20,152,037,399.22/190,519.20
  6. Step 6: Final answer
    x = 105,774.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.