Home / 190,350.18-285,550.38-70,390.80

Finding the Fourth Proportional to 190,350.18, 285,550.38 and 70,390.80

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Solution

The fourth proportional to 190,350.18, 285,550.38 and 70,390.80 is: 105,595.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,350.18 : 285,550.38 = 70,390.80 : x
  2. Step 2: Convert to fraction form
    190,350.18/285,550.38 = 70,390.80/x
  3. Step 3: Cross multiply
    190,350.18x = 285,550.38 × 70,390.80
  4. Step 4: Simplify right side
    190,350.18x = 20,100,119,688.50
  5. Step 5: Solve for x
    x = 20,100,119,688.50/190,350.18
  6. Step 6: Final answer
    x = 105,595.49

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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.