Home / 140,683.84-194,136.42-77,009.56

Finding the Fourth Proportional to 140,683.84, 194,136.42 and 77,009.56

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Solution

The fourth proportional to 140,683.84, 194,136.42 and 77,009.56 is: 106,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,683.84 : 194,136.42 = 77,009.56 : x
  2. Step 2: Convert to fraction form
    140,683.84/194,136.42 = 77,009.56/x
  3. Step 3: Cross multiply
    140,683.84x = 194,136.42 × 77,009.56
  4. Step 4: Simplify right side
    140,683.84x = 14,950,360,284.18
  5. Step 5: Solve for x
    x = 14,950,360,284.18/140,683.84
  6. Step 6: Final answer
    x = 106,269.21

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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.