Home / 97,450.26-134,610.43-78,401.80

Finding the Fourth Proportional to 97,450.26, 134,610.43 and 78,401.80

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Solution

The fourth proportional to 97,450.26, 134,610.43 and 78,401.80 is: 108,298.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,450.26 : 134,610.43 = 78,401.80 : x
  2. Step 2: Convert to fraction form
    97,450.26/134,610.43 = 78,401.80/x
  3. Step 3: Cross multiply
    97,450.26x = 134,610.43 × 78,401.80
  4. Step 4: Simplify right side
    97,450.26x = 10,553,698,945.71
  5. Step 5: Solve for x
    x = 10,553,698,945.71/97,450.26
  6. Step 6: Final answer
    x = 108,298.31

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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.