Home / 190,423.26-285,597.83-72,103.86

Finding the Fourth Proportional to 190,423.26, 285,597.83 and 72,103.86

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Solution

The fourth proportional to 190,423.26, 285,597.83 and 72,103.86 is: 108,141.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,423.26 : 285,597.83 = 72,103.86 : x
  2. Step 2: Convert to fraction form
    190,423.26/285,597.83 = 72,103.86/x
  3. Step 3: Cross multiply
    190,423.26x = 285,597.83 × 72,103.86
  4. Step 4: Simplify right side
    190,423.26x = 20,592,705,590.10
  5. Step 5: Solve for x
    x = 20,592,705,590.10/190,423.26
  6. Step 6: Final answer
    x = 108,141.76

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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.