Home / 104,070.42-155,956.19-51,418.40

Finding the Fourth Proportional to 104,070.42, 155,956.19 and 51,418.40

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Solution

The fourth proportional to 104,070.42, 155,956.19 and 51,418.40 is: 77,053.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,070.42 : 155,956.19 = 51,418.40 : x
  2. Step 2: Convert to fraction form
    104,070.42/155,956.19 = 51,418.40/x
  3. Step 3: Cross multiply
    104,070.42x = 155,956.19 × 51,418.40
  4. Step 4: Simplify right side
    104,070.42x = 8,019,016,723.02
  5. Step 5: Solve for x
    x = 8,019,016,723.02/104,070.42
  6. Step 6: Final answer
    x = 77,053.76

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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.