Home / 190,019.18-262,223.01-105,136.25

Finding the Fourth Proportional to 190,019.18, 262,223.01 and 105,136.25

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Solution

The fourth proportional to 190,019.18, 262,223.01 and 105,136.25 is: 145,086.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,019.18 : 262,223.01 = 105,136.25 : x
  2. Step 2: Convert to fraction form
    190,019.18/262,223.01 = 105,136.25/x
  3. Step 3: Cross multiply
    190,019.18x = 262,223.01 × 105,136.25
  4. Step 4: Simplify right side
    190,019.18x = 27,569,143,935.11
  5. Step 5: Solve for x
    x = 27,569,143,935.11/190,019.18
  6. Step 6: Final answer
    x = 145,086.11

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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.