Home / 137,976.54-190,407.33-77,549.64

Finding the Fourth Proportional to 137,976.54, 190,407.33 and 77,549.64

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Solution

The fourth proportional to 137,976.54, 190,407.33 and 77,549.64 is: 107,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,976.54 : 190,407.33 = 77,549.64 : x
  2. Step 2: Convert to fraction form
    137,976.54/190,407.33 = 77,549.64/x
  3. Step 3: Cross multiply
    137,976.54x = 190,407.33 × 77,549.64
  4. Step 4: Simplify right side
    137,976.54x = 14,766,019,894.86
  5. Step 5: Solve for x
    x = 14,766,019,894.86/137,976.54
  6. Step 6: Final answer
    x = 107,018.34

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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.