Home / 139,120.03-208,683.63-37,918.91

Finding the Fourth Proportional to 139,120.03, 208,683.63 and 37,918.91

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Solution

The fourth proportional to 139,120.03, 208,683.63 and 37,918.91 is: 56,879.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,120.03 : 208,683.63 = 37,918.91 : x
  2. Step 2: Convert to fraction form
    139,120.03/208,683.63 = 37,918.91/x
  3. Step 3: Cross multiply
    139,120.03x = 208,683.63 × 37,918.91
  4. Step 4: Simplify right side
    139,120.03x = 7,913,055,825.88
  5. Step 5: Solve for x
    x = 7,913,055,825.88/139,120.03
  6. Step 6: Final answer
    x = 56,879.34

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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.