Home / 190,356.16-262,661.52-105,470.32

Finding the Fourth Proportional to 190,356.16, 262,661.52 and 105,470.32

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Solution

The fourth proportional to 190,356.16, 262,661.52 and 105,470.32 is: 145,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,356.16 : 262,661.52 = 105,470.32 : x
  2. Step 2: Convert to fraction form
    190,356.16/262,661.52 = 105,470.32/x
  3. Step 3: Cross multiply
    190,356.16x = 262,661.52 × 105,470.32
  4. Step 4: Simplify right side
    190,356.16x = 27,702,994,566.09
  5. Step 5: Solve for x
    x = 27,702,994,566.09/190,356.16
  6. Step 6: Final answer
    x = 145,532.43

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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.