Home / 190,197.56-262,473.90-105,320.12

Finding the Fourth Proportional to 190,197.56, 262,473.90 and 105,320.12

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Solution

The fourth proportional to 190,197.56, 262,473.90 and 105,320.12 is: 145,342.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,197.56 : 262,473.90 = 105,320.12 : x
  2. Step 2: Convert to fraction form
    190,197.56/262,473.90 = 105,320.12/x
  3. Step 3: Cross multiply
    190,197.56x = 262,473.90 × 105,320.12
  4. Step 4: Simplify right side
    190,197.56x = 27,643,782,644.87
  5. Step 5: Solve for x
    x = 27,643,782,644.87/190,197.56
  6. Step 6: Final answer
    x = 145,342.47

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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.