Home / 190,523.71-285,785.63-70,621.89

Finding the Fourth Proportional to 190,523.71, 285,785.63 and 70,621.89

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Solution

The fourth proportional to 190,523.71, 285,785.63 and 70,621.89 is: 105,932.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,523.71 : 285,785.63 = 70,621.89 : x
  2. Step 2: Convert to fraction form
    190,523.71/285,785.63 = 70,621.89/x
  3. Step 3: Cross multiply
    190,523.71x = 285,785.63 × 70,621.89
  4. Step 4: Simplify right side
    190,523.71x = 20,182,721,325.44
  5. Step 5: Solve for x
    x = 20,182,721,325.44/190,523.71
  6. Step 6: Final answer
    x = 105,932.86

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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.