Home / 190,767.16-285,956.34-85,557.88

Finding the Fourth Proportional to 190,767.16, 285,956.34 and 85,557.88

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Solution

The fourth proportional to 190,767.16, 285,956.34 and 85,557.88 is: 128,249.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,767.16 : 285,956.34 = 85,557.88 : x
  2. Step 2: Convert to fraction form
    190,767.16/285,956.34 = 85,557.88/x
  3. Step 3: Cross multiply
    190,767.16x = 285,956.34 × 85,557.88
  4. Step 4: Simplify right side
    190,767.16x = 24,465,818,222.96
  5. Step 5: Solve for x
    x = 24,465,818,222.96/190,767.16
  6. Step 6: Final answer
    x = 128,249.63

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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.