Home / 190,669.02-263,123.28-105,785.88

Finding the Fourth Proportional to 190,669.02, 263,123.28 and 105,785.88

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Solution

The fourth proportional to 190,669.02, 263,123.28 and 105,785.88 is: 145,984.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,669.02 : 263,123.28 = 105,785.88 : x
  2. Step 2: Convert to fraction form
    190,669.02/263,123.28 = 105,785.88/x
  3. Step 3: Cross multiply
    190,669.02x = 263,123.28 × 105,785.88
  4. Step 4: Simplify right side
    190,669.02x = 27,834,727,723.29
  5. Step 5: Solve for x
    x = 27,834,727,723.29/190,669.02
  6. Step 6: Final answer
    x = 145,984.53

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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.