Home / 101,007.12-139,390.10-60,743.94

Finding the Fourth Proportional to 101,007.12, 139,390.10 and 60,743.94

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Solution

The fourth proportional to 101,007.12, 139,390.10 and 60,743.94 is: 83,826.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,007.12 : 139,390.10 = 60,743.94 : x
  2. Step 2: Convert to fraction form
    101,007.12/139,390.10 = 60,743.94/x
  3. Step 3: Cross multiply
    101,007.12x = 139,390.10 × 60,743.94
  4. Step 4: Simplify right side
    101,007.12x = 8,467,103,870.99
  5. Step 5: Solve for x
    x = 8,467,103,870.99/101,007.12
  6. Step 6: Final answer
    x = 83,826.80

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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.