Home / 190,805.33-263,298.16-105,915.71

Finding the Fourth Proportional to 190,805.33, 263,298.16 and 105,915.71

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Solution

The fourth proportional to 190,805.33, 263,298.16 and 105,915.71 is: 146,156.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,805.33 : 263,298.16 = 105,915.71 : x
  2. Step 2: Convert to fraction form
    190,805.33/263,298.16 = 105,915.71/x
  3. Step 3: Cross multiply
    190,805.33x = 263,298.16 × 105,915.71
  4. Step 4: Simplify right side
    190,805.33x = 27,887,411,558.09
  5. Step 5: Solve for x
    x = 27,887,411,558.09/190,805.33
  6. Step 6: Final answer
    x = 146,156.36

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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.