Home / 190,021.80-285,016.30-56,931.92

Finding the Fourth Proportional to 190,021.80, 285,016.30 and 56,931.92

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Solution

The fourth proportional to 190,021.80, 285,016.30 and 56,931.92 is: 85,392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,021.80 : 285,016.30 = 56,931.92 : x
  2. Step 2: Convert to fraction form
    190,021.80/285,016.30 = 56,931.92/x
  3. Step 3: Cross multiply
    190,021.80x = 285,016.30 × 56,931.92
  4. Step 4: Simplify right side
    190,021.80x = 16,226,523,622.88
  5. Step 5: Solve for x
    x = 16,226,523,622.88/190,021.80
  6. Step 6: Final answer
    x = 85,392.96

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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.