Home / 190,171.50-262,436.70-105,294.06

Finding the Fourth Proportional to 190,171.50, 262,436.70 and 105,294.06

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Solution

The fourth proportional to 190,171.50, 262,436.70 and 105,294.06 is: 145,305.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,171.50 : 262,436.70 = 105,294.06 : x
  2. Step 2: Convert to fraction form
    190,171.50/262,436.70 = 105,294.06/x
  3. Step 3: Cross multiply
    190,171.50x = 262,436.70 × 105,294.06
  4. Step 4: Simplify right side
    190,171.50x = 27,633,025,636.00
  5. Step 5: Solve for x
    x = 27,633,025,636.00/190,171.50
  6. Step 6: Final answer
    x = 145,305.82

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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.