Home / 190,615.77-263,045.75-105,732.09

Finding the Fourth Proportional to 190,615.77, 263,045.75 and 105,732.09

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Solution

The fourth proportional to 190,615.77, 263,045.75 and 105,732.09 is: 145,908.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,615.77 : 263,045.75 = 105,732.09 : x
  2. Step 2: Convert to fraction form
    190,615.77/263,045.75 = 105,732.09/x
  3. Step 3: Cross multiply
    190,615.77x = 263,045.75 × 105,732.09
  4. Step 4: Simplify right side
    190,615.77x = 27,812,376,384.46
  5. Step 5: Solve for x
    x = 27,812,376,384.46/190,615.77
  6. Step 6: Final answer
    x = 145,908.06

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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.