Home / 190,304.36-262,620.02-105,426.92

Finding the Fourth Proportional to 190,304.36, 262,620.02 and 105,426.92

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Solution

The fourth proportional to 190,304.36, 262,620.02 and 105,426.92 is: 145,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,304.36 : 262,620.02 = 105,426.92 : x
  2. Step 2: Convert to fraction form
    190,304.36/262,620.02 = 105,426.92/x
  3. Step 3: Cross multiply
    190,304.36x = 262,620.02 × 105,426.92
  4. Step 4: Simplify right side
    190,304.36x = 27,687,219,838.94
  5. Step 5: Solve for x
    x = 27,687,219,838.94/190,304.36
  6. Step 6: Final answer
    x = 145,489.15

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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.