Home / 170,832.72-256,303.80-77,313.36

Finding the Fourth Proportional to 170,832.72, 256,303.80 and 77,313.36

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Solution

The fourth proportional to 170,832.72, 256,303.80 and 77,313.36 is: 115,994.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,832.72 : 256,303.80 = 77,313.36 : x
  2. Step 2: Convert to fraction form
    170,832.72/256,303.80 = 77,313.36/x
  3. Step 3: Cross multiply
    170,832.72x = 256,303.80 × 77,313.36
  4. Step 4: Simplify right side
    170,832.72x = 19,815,707,958.77
  5. Step 5: Solve for x
    x = 19,815,707,958.77/170,832.72
  6. Step 6: Final answer
    x = 115,994.80

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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.