Home / 190,201.28-262,477.72-105,318.32

Finding the Fourth Proportional to 190,201.28, 262,477.72 and 105,318.32

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Solution

The fourth proportional to 190,201.28, 262,477.72 and 105,318.32 is: 145,339.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,201.28 : 262,477.72 = 105,318.32 : x
  2. Step 2: Convert to fraction form
    190,201.28/262,477.72 = 105,318.32/x
  3. Step 3: Cross multiply
    190,201.28x = 262,477.72 × 105,318.32
  4. Step 4: Simplify right side
    190,201.28x = 27,643,712,507.83
  5. Step 5: Solve for x
    x = 27,643,712,507.83/190,201.28
  6. Step 6: Final answer
    x = 145,339.26

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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.