Home / 104,868.95-144,721.35-57,122.18

Finding the Fourth Proportional to 104,868.95, 144,721.35 and 57,122.18

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Solution

The fourth proportional to 104,868.95, 144,721.35 and 57,122.18 is: 78,829.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,868.95 : 144,721.35 = 57,122.18 : x
  2. Step 2: Convert to fraction form
    104,868.95/144,721.35 = 57,122.18/x
  3. Step 3: Cross multiply
    104,868.95x = 144,721.35 × 57,122.18
  4. Step 4: Simplify right side
    104,868.95x = 8,266,799,004.54
  5. Step 5: Solve for x
    x = 8,266,799,004.54/104,868.95
  6. Step 6: Final answer
    x = 78,829.81

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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.