Home / 192,136.20-287,837.10-103,360.20

Finding the Fourth Proportional to 192,136.20, 287,837.10 and 103,360.20

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Solution

The fourth proportional to 192,136.20, 287,837.10 and 103,360.20 is: 154,842.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,136.20 : 287,837.10 = 103,360.20 : x
  2. Step 2: Convert to fraction form
    192,136.20/287,837.10 = 103,360.20/x
  3. Step 3: Cross multiply
    192,136.20x = 287,837.10 × 103,360.20
  4. Step 4: Simplify right side
    192,136.20x = 29,750,900,223.42
  5. Step 5: Solve for x
    x = 29,750,900,223.42/192,136.20
  6. Step 6: Final answer
    x = 154,842.76

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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.