Home / 171,320.25-257,041.23-76,541.75

Finding the Fourth Proportional to 171,320.25, 257,041.23 and 76,541.75

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Solution

The fourth proportional to 171,320.25, 257,041.23 and 76,541.75 is: 114,839.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,320.25 : 257,041.23 = 76,541.75 : x
  2. Step 2: Convert to fraction form
    171,320.25/257,041.23 = 76,541.75/x
  3. Step 3: Cross multiply
    171,320.25x = 257,041.23 × 76,541.75
  4. Step 4: Simplify right side
    171,320.25x = 19,674,385,566.35
  5. Step 5: Solve for x
    x = 19,674,385,566.35/171,320.25
  6. Step 6: Final answer
    x = 114,839.81

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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.