Home / 190,161.10-285,205.20-57,045.70

Finding the Fourth Proportional to 190,161.10, 285,205.20 and 57,045.70

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Solution

The fourth proportional to 190,161.10, 285,205.20 and 57,045.70 is: 85,557.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,161.10 : 285,205.20 = 57,045.70 : x
  2. Step 2: Convert to fraction form
    190,161.10/285,205.20 = 57,045.70/x
  3. Step 3: Cross multiply
    190,161.10x = 285,205.20 × 57,045.70
  4. Step 4: Simplify right side
    190,161.10x = 16,269,730,277.64
  5. Step 5: Solve for x
    x = 16,269,730,277.64/190,161.10
  6. Step 6: Final answer
    x = 85,557.62

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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.