Home / 158,063.45-218,147.48-103,661.37

Finding the Fourth Proportional to 158,063.45, 218,147.48 and 103,661.37

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Solution

The fourth proportional to 158,063.45, 218,147.48 and 103,661.37 is: 143,065.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,063.45 : 218,147.48 = 103,661.37 : x
  2. Step 2: Convert to fraction form
    158,063.45/218,147.48 = 103,661.37/x
  3. Step 3: Cross multiply
    158,063.45x = 218,147.48 × 103,661.37
  4. Step 4: Simplify right side
    158,063.45x = 22,613,466,509.27
  5. Step 5: Solve for x
    x = 22,613,466,509.27/158,063.45
  6. Step 6: Final answer
    x = 143,065.75

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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.