Home / 70,136.18-105,209.78-23,389.06

Finding the Fourth Proportional to 70,136.18, 105,209.78 and 23,389.06

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Solution

The fourth proportional to 70,136.18, 105,209.78 and 23,389.06 is: 35,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,136.18 : 105,209.78 = 23,389.06 : x
  2. Step 2: Convert to fraction form
    70,136.18/105,209.78 = 23,389.06/x
  3. Step 3: Cross multiply
    70,136.18x = 105,209.78 × 23,389.06
  4. Step 4: Simplify right side
    70,136.18x = 2,460,757,857.01
  5. Step 5: Solve for x
    x = 2,460,757,857.01/70,136.18
  6. Step 6: Final answer
    x = 35,085.43

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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.