Home / 140,136.24-193,394.32-78,903.52

Finding the Fourth Proportional to 140,136.24, 193,394.32 and 78,903.52

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Solution

The fourth proportional to 140,136.24, 193,394.32 and 78,903.52 is: 108,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,136.24 : 193,394.32 = 78,903.52 : x
  2. Step 2: Convert to fraction form
    140,136.24/193,394.32 = 78,903.52/x
  3. Step 3: Cross multiply
    140,136.24x = 193,394.32 × 78,903.52
  4. Step 4: Simplify right side
    140,136.24x = 15,259,492,596.01
  5. Step 5: Solve for x
    x = 15,259,492,596.01/140,136.24
  6. Step 6: Final answer
    x = 108,890.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.