Home / 157,447.80-236,040.24-78,453.36

Finding the Fourth Proportional to 157,447.80, 236,040.24 and 78,453.36

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Solution

The fourth proportional to 157,447.80, 236,040.24 and 78,453.36 is: 117,614.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,447.80 : 236,040.24 = 78,453.36 : x
  2. Step 2: Convert to fraction form
    157,447.80/236,040.24 = 78,453.36/x
  3. Step 3: Cross multiply
    157,447.80x = 236,040.24 × 78,453.36
  4. Step 4: Simplify right side
    157,447.80x = 18,518,149,923.21
  5. Step 5: Solve for x
    x = 18,518,149,923.21/157,447.80
  6. Step 6: Final answer
    x = 117,614.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.