Home / 115,865.22-159,907.44-70,569.78

Finding the Fourth Proportional to 115,865.22, 159,907.44 and 70,569.78

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Solution

The fourth proportional to 115,865.22, 159,907.44 and 70,569.78 is: 97,394.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,865.22 : 159,907.44 = 70,569.78 : x
  2. Step 2: Convert to fraction form
    115,865.22/159,907.44 = 70,569.78/x
  3. Step 3: Cross multiply
    115,865.22x = 159,907.44 × 70,569.78
  4. Step 4: Simplify right side
    115,865.22x = 11,284,632,861.16
  5. Step 5: Solve for x
    x = 11,284,632,861.16/115,865.22
  6. Step 6: Final answer
    x = 97,394.48

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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.