Home / 103,651.14-143,030.73-61,201.50

Finding the Fourth Proportional to 103,651.14, 143,030.73 and 61,201.50

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Solution

The fourth proportional to 103,651.14, 143,030.73 and 61,201.50 is: 84,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,651.14 : 143,030.73 = 61,201.50 : x
  2. Step 2: Convert to fraction form
    103,651.14/143,030.73 = 61,201.50/x
  3. Step 3: Cross multiply
    103,651.14x = 143,030.73 × 61,201.50
  4. Step 4: Simplify right side
    103,651.14x = 8,753,695,222.10
  5. Step 5: Solve for x
    x = 8,753,695,222.10/103,651.14
  6. Step 6: Final answer
    x = 84,453.44

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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.