Home / 171,631.51-257,501.03-76,941.09

Finding the Fourth Proportional to 171,631.51, 257,501.03 and 76,941.09

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Solution

The fourth proportional to 171,631.51, 257,501.03 and 76,941.09 is: 115,435.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,631.51 : 257,501.03 = 76,941.09 : x
  2. Step 2: Convert to fraction form
    171,631.51/257,501.03 = 76,941.09/x
  3. Step 3: Cross multiply
    171,631.51x = 257,501.03 × 76,941.09
  4. Step 4: Simplify right side
    171,631.51x = 19,812,409,539.62
  5. Step 5: Solve for x
    x = 19,812,409,539.62/171,631.51
  6. Step 6: Final answer
    x = 115,435.74

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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.