Home / 190,521.36-262,915.56-105,637.68

Finding the Fourth Proportional to 190,521.36, 262,915.56 and 105,637.68

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Solution

The fourth proportional to 190,521.36, 262,915.56 and 105,637.68 is: 145,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,521.36 : 262,915.56 = 105,637.68 : x
  2. Step 2: Convert to fraction form
    190,521.36/262,915.56 = 105,637.68/x
  3. Step 3: Cross multiply
    190,521.36x = 262,915.56 × 105,637.68
  4. Step 4: Simplify right side
    190,521.36x = 27,773,789,794.30
  5. Step 5: Solve for x
    x = 27,773,789,794.30/190,521.36
  6. Step 6: Final answer
    x = 145,777.83

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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.