Home / 131,576.25-181,579.55-71,960.25

Finding the Fourth Proportional to 131,576.25, 181,579.55 and 71,960.25

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Solution

The fourth proportional to 131,576.25, 181,579.55 and 71,960.25 is: 99,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,576.25 : 181,579.55 = 71,960.25 : x
  2. Step 2: Convert to fraction form
    131,576.25/181,579.55 = 71,960.25/x
  3. Step 3: Cross multiply
    131,576.25x = 181,579.55 × 71,960.25
  4. Step 4: Simplify right side
    131,576.25x = 13,066,509,453.09
  5. Step 5: Solve for x
    x = 13,066,509,453.09/131,576.25
  6. Step 6: Final answer
    x = 99,307.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.