Home / 190,336.20-285,529.40-70,376.80

Finding the Fourth Proportional to 190,336.20, 285,529.40 and 70,376.80

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Solution

The fourth proportional to 190,336.20, 285,529.40 and 70,376.80 is: 105,574.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,336.20 : 285,529.40 = 70,376.80 : x
  2. Step 2: Convert to fraction form
    190,336.20/285,529.40 = 70,376.80/x
  3. Step 3: Cross multiply
    190,336.20x = 285,529.40 × 70,376.80
  4. Step 4: Simplify right side
    190,336.20x = 20,094,645,477.92
  5. Step 5: Solve for x
    x = 20,094,645,477.92/190,336.20
  6. Step 6: Final answer
    x = 105,574.48

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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.