Home / 190,381.54-285,204.39-105,886.34

Finding the Fourth Proportional to 190,381.54, 285,204.39 and 105,886.34

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Solution

The fourth proportional to 190,381.54, 285,204.39 and 105,886.34 is: 158,624.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,381.54 : 285,204.39 = 105,886.34 : x
  2. Step 2: Convert to fraction form
    190,381.54/285,204.39 = 105,886.34/x
  3. Step 3: Cross multiply
    190,381.54x = 285,204.39 × 105,886.34
  4. Step 4: Simplify right side
    190,381.54x = 30,199,248,851.06
  5. Step 5: Solve for x
    x = 30,199,248,851.06/190,381.54
  6. Step 6: Final answer
    x = 158,624.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.