Home / 138,146.37-190,539.94-95,139.52

Finding the Fourth Proportional to 138,146.37, 190,539.94 and 95,139.52

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Solution

The fourth proportional to 138,146.37, 190,539.94 and 95,139.52 is: 131,222.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,146.37 : 190,539.94 = 95,139.52 : x
  2. Step 2: Convert to fraction form
    138,146.37/190,539.94 = 95,139.52/x
  3. Step 3: Cross multiply
    138,146.37x = 190,539.94 × 95,139.52
  4. Step 4: Simplify right side
    138,146.37x = 18,127,877,479.73
  5. Step 5: Solve for x
    x = 18,127,877,479.73/138,146.37
  6. Step 6: Final answer
    x = 131,222.25

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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.