Home / 119,168.09-164,453.31-65,454.36

Finding the Fourth Proportional to 119,168.09, 164,453.31 and 65,454.36

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Solution

The fourth proportional to 119,168.09, 164,453.31 and 65,454.36 is: 90,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,168.09 : 164,453.31 = 65,454.36 : x
  2. Step 2: Convert to fraction form
    119,168.09/164,453.31 = 65,454.36/x
  3. Step 3: Cross multiply
    119,168.09x = 164,453.31 × 65,454.36
  4. Step 4: Simplify right side
    119,168.09x = 10,764,186,155.93
  5. Step 5: Solve for x
    x = 10,764,186,155.93/119,168.09
  6. Step 6: Final answer
    x = 90,327.76

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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.