Home / 190,187.72-285,214.03-70,219.00

Finding the Fourth Proportional to 190,187.72, 285,214.03 and 70,219.00

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Solution

The fourth proportional to 190,187.72, 285,214.03 and 70,219.00 is: 105,303.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,187.72 : 285,214.03 = 70,219.00 : x
  2. Step 2: Convert to fraction form
    190,187.72/285,214.03 = 70,219.00/x
  3. Step 3: Cross multiply
    190,187.72x = 285,214.03 × 70,219.00
  4. Step 4: Simplify right side
    190,187.72x = 20,027,442,195.40
  5. Step 5: Solve for x
    x = 20,027,442,195.40/190,187.72
  6. Step 6: Final answer
    x = 105,303.55

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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.