Home / 137,745.83-190,076.12-77,302.62

Finding the Fourth Proportional to 137,745.83, 190,076.12 and 77,302.62

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Solution

The fourth proportional to 137,745.83, 190,076.12 and 77,302.62 is: 106,670.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,745.83 : 190,076.12 = 77,302.62 : x
  2. Step 2: Convert to fraction form
    137,745.83/190,076.12 = 77,302.62/x
  3. Step 3: Cross multiply
    137,745.83x = 190,076.12 × 77,302.62
  4. Step 4: Simplify right side
    137,745.83x = 14,693,381,444.22
  5. Step 5: Solve for x
    x = 14,693,381,444.22/137,745.83
  6. Step 6: Final answer
    x = 106,670.25

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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.