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Finding the Fourth Proportional to 119,989, 179,950.38 and 45,103.24

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Solution

The fourth proportional to 119,989, 179,950.38 and 45,103.24 is: 67,642.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,989 : 179,950.38 = 45,103.24 : x
  2. Step 2: Convert to fraction form
    119,989/179,950.38 = 45,103.24/x
  3. Step 3: Cross multiply
    119,989x = 179,950.38 × 45,103.24
  4. Step 4: Simplify right side
    119,989x = 8,116,345,177.23
  5. Step 5: Solve for x
    x = 8,116,345,177.23/119,989
  6. Step 6: Final answer
    x = 67,642.41

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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.