Home / 190,318.87-262,649.42-105,436.27

Finding the Fourth Proportional to 190,318.87, 262,649.42 and 105,436.27

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Solution

The fourth proportional to 190,318.87, 262,649.42 and 105,436.27 is: 145,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,318.87 : 262,649.42 = 105,436.27 : x
  2. Step 2: Convert to fraction form
    190,318.87/262,649.42 = 105,436.27/x
  3. Step 3: Cross multiply
    190,318.87x = 262,649.42 × 105,436.27
  4. Step 4: Simplify right side
    190,318.87x = 27,692,775,162.46
  5. Step 5: Solve for x
    x = 27,692,775,162.46/190,318.87
  6. Step 6: Final answer
    x = 145,507.25

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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.