Home / 115,071.14-158,847.27-77,367.26

Finding the Fourth Proportional to 115,071.14, 158,847.27 and 77,367.26

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Solution

The fourth proportional to 115,071.14, 158,847.27 and 77,367.26 is: 106,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,071.14 : 158,847.27 = 77,367.26 : x
  2. Step 2: Convert to fraction form
    115,071.14/158,847.27 = 77,367.26/x
  3. Step 3: Cross multiply
    115,071.14x = 158,847.27 × 77,367.26
  4. Step 4: Simplify right side
    115,071.14x = 12,289,578,038.38
  5. Step 5: Solve for x
    x = 12,289,578,038.38/115,071.14
  6. Step 6: Final answer
    x = 106,799.83

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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.