Home / 102,718.44-153,862.77-82,619.37

Finding the Fourth Proportional to 102,718.44, 153,862.77 and 82,619.37

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Solution

The fourth proportional to 102,718.44, 153,862.77 and 82,619.37 is: 123,756.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,718.44 : 153,862.77 = 82,619.37 : x
  2. Step 2: Convert to fraction form
    102,718.44/153,862.77 = 82,619.37/x
  3. Step 3: Cross multiply
    102,718.44x = 153,862.77 × 82,619.37
  4. Step 4: Simplify right side
    102,718.44x = 12,712,045,123.85
  5. Step 5: Solve for x
    x = 12,712,045,123.85/102,718.44
  6. Step 6: Final answer
    x = 123,756.21

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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.