Home / 190,624.20-285,838.66-100,715.19

Finding the Fourth Proportional to 190,624.20, 285,838.66 and 100,715.19

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Solution

The fourth proportional to 190,624.20, 285,838.66 and 100,715.19 is: 151,021.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,624.20 : 285,838.66 = 100,715.19 : x
  2. Step 2: Convert to fraction form
    190,624.20/285,838.66 = 100,715.19/x
  3. Step 3: Cross multiply
    190,624.20x = 285,838.66 × 100,715.19
  4. Step 4: Simplify right side
    190,624.20x = 28,788,294,951.25
  5. Step 5: Solve for x
    x = 28,788,294,951.25/190,624.20
  6. Step 6: Final answer
    x = 151,021.20

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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.