Home / 108,172,151.37-149,329,043.37-72,470,067.03

Finding the Fourth Proportional to 108,172,151.37, 149,329,043.37 and 72,470,067.03

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Solution

The fourth proportional to 108,172,151.37, 149,329,043.37 and 72,470,067.03 is: 100,043,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,172,151.37 : 149,329,043.37 = 72,470,067.03 : x
  2. Step 2: Convert to fraction form
    108,172,151.37/149,329,043.37 = 72,470,067.03/x
  3. Step 3: Cross multiply
    108,172,151.37x = 149,329,043.37 × 72,470,067.03
  4. Step 4: Simplify right side
    108,172,151.37x = 10,821,885,782,549,678
  5. Step 5: Solve for x
    x = 10,821,885,782,549,678/108,172,151.37
  6. Step 6: Final answer
    x = 100,043,177.89

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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.