Home / 190,202.28-262,479.10-105,319.32

Finding the Fourth Proportional to 190,202.28, 262,479.10 and 105,319.32

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Solution

The fourth proportional to 190,202.28, 262,479.10 and 105,319.32 is: 145,340.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,202.28 : 262,479.10 = 105,319.32 : x
  2. Step 2: Convert to fraction form
    190,202.28/262,479.10 = 105,319.32/x
  3. Step 3: Cross multiply
    190,202.28x = 262,479.10 × 105,319.32
  4. Step 4: Simplify right side
    190,202.28x = 27,644,120,326.21
  5. Step 5: Solve for x
    x = 27,644,120,326.21/190,202.28
  6. Step 6: Final answer
    x = 145,340.64

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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.