Home / 190,787.68-263,288.04-119,209.28

Finding the Fourth Proportional to 190,787.68, 263,288.04 and 119,209.28

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Solution

The fourth proportional to 190,787.68, 263,288.04 and 119,209.28 is: 164,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,787.68 : 263,288.04 = 119,209.28 : x
  2. Step 2: Convert to fraction form
    190,787.68/263,288.04 = 119,209.28/x
  3. Step 3: Cross multiply
    190,787.68x = 263,288.04 × 119,209.28
  4. Step 4: Simplify right side
    190,787.68x = 31,386,377,681.01
  5. Step 5: Solve for x
    x = 31,386,377,681.01/190,787.68
  6. Step 6: Final answer
    x = 164,509.46

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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.