Home / 189,869.18-262,018.77-107,076.57

Finding the Fourth Proportional to 189,869.18, 262,018.77 and 107,076.57

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Solution

The fourth proportional to 189,869.18, 262,018.77 and 107,076.57 is: 147,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,869.18 : 262,018.77 = 107,076.57 : x
  2. Step 2: Convert to fraction form
    189,869.18/262,018.77 = 107,076.57/x
  3. Step 3: Cross multiply
    189,869.18x = 262,018.77 × 107,076.57
  4. Step 4: Simplify right side
    189,869.18x = 28,056,071,167.22
  5. Step 5: Solve for x
    x = 28,056,071,167.22/189,869.18
  6. Step 6: Final answer
    x = 147,765.28

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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.