Home / 190,045.36-262,268.04-105,170.32

Finding the Fourth Proportional to 190,045.36, 262,268.04 and 105,170.32

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Solution

The fourth proportional to 190,045.36, 262,268.04 and 105,170.32 is: 145,138.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,045.36 : 262,268.04 = 105,170.32 : x
  2. Step 2: Convert to fraction form
    190,045.36/262,268.04 = 105,170.32/x
  3. Step 3: Cross multiply
    190,045.36x = 262,268.04 × 105,170.32
  4. Step 4: Simplify right side
    190,045.36x = 27,582,813,692.57
  5. Step 5: Solve for x
    x = 27,582,813,692.57/190,045.36
  6. Step 6: Final answer
    x = 145,138.05

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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.