Home / 131,055.78-180,858.24-74,467.56

Finding the Fourth Proportional to 131,055.78, 180,858.24 and 74,467.56

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Solution

The fourth proportional to 131,055.78, 180,858.24 and 74,467.56 is: 102,765.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,055.78 : 180,858.24 = 74,467.56 : x
  2. Step 2: Convert to fraction form
    131,055.78/180,858.24 = 74,467.56/x
  3. Step 3: Cross multiply
    131,055.78x = 180,858.24 × 74,467.56
  4. Step 4: Simplify right side
    131,055.78x = 13,468,071,838.69
  5. Step 5: Solve for x
    x = 13,468,071,838.69/131,055.78
  6. Step 6: Final answer
    x = 102,765.95

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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.