Home / 190,868.40-263,396.88-105,985.68

Finding the Fourth Proportional to 190,868.40, 263,396.88 and 105,985.68

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Solution

The fourth proportional to 190,868.40, 263,396.88 and 105,985.68 is: 146,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,868.40 : 263,396.88 = 105,985.68 : x
  2. Step 2: Convert to fraction form
    190,868.40/263,396.88 = 105,985.68/x
  3. Step 3: Cross multiply
    190,868.40x = 263,396.88 × 105,985.68
  4. Step 4: Simplify right side
    190,868.40x = 27,916,297,436.68
  5. Step 5: Solve for x
    x = 27,916,297,436.68/190,868.40
  6. Step 6: Final answer
    x = 146,259.40

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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.