Home / 137,746.05-190,092.36-77,321.06

Finding the Fourth Proportional to 137,746.05, 190,092.36 and 77,321.06

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Solution

The fourth proportional to 137,746.05, 190,092.36 and 77,321.06 is: 106,704.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,746.05 : 190,092.36 = 77,321.06 : x
  2. Step 2: Convert to fraction form
    137,746.05/190,092.36 = 77,321.06/x
  3. Step 3: Cross multiply
    137,746.05x = 190,092.36 × 77,321.06
  4. Step 4: Simplify right side
    137,746.05x = 14,698,142,825.44
  5. Step 5: Solve for x
    x = 14,698,142,825.44/137,746.05
  6. Step 6: Final answer
    x = 106,704.64

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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.