Home / 137,811.45-190,189.22-76,564.83

Finding the Fourth Proportional to 137,811.45, 190,189.22 and 76,564.83

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Solution

The fourth proportional to 137,811.45, 190,189.22 and 76,564.83 is: 105,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,811.45 : 190,189.22 = 76,564.83 : x
  2. Step 2: Convert to fraction form
    137,811.45/190,189.22 = 76,564.83/x
  3. Step 3: Cross multiply
    137,811.45x = 190,189.22 × 76,564.83
  4. Step 4: Simplify right side
    137,811.45x = 14,561,804,914.31
  5. Step 5: Solve for x
    x = 14,561,804,914.31/137,811.45
  6. Step 6: Final answer
    x = 105,664.70

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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.