Home / 131,415.36-181,355.52-74,832

Finding the Fourth Proportional to 131,415.36, 181,355.52 and 74,832

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Solution

The fourth proportional to 131,415.36, 181,355.52 and 74,832 is: 103,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,415.36 : 181,355.52 = 74,832 : x
  2. Step 2: Convert to fraction form
    131,415.36/181,355.52 = 74,832/x
  3. Step 3: Cross multiply
    131,415.36x = 181,355.52 × 74,832
  4. Step 4: Simplify right side
    131,415.36x = 13,571,196,272.64
  5. Step 5: Solve for x
    x = 13,571,196,272.64/131,415.36
  6. Step 6: Final answer
    x = 103,269.48

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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.