Home / 123,564.12-170,554.73-71,893.37

Finding the Fourth Proportional to 123,564.12, 170,554.73 and 71,893.37

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Solution

The fourth proportional to 123,564.12, 170,554.73 and 71,893.37 is: 99,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,564.12 : 170,554.73 = 71,893.37 : x
  2. Step 2: Convert to fraction form
    123,564.12/170,554.73 = 71,893.37/x
  3. Step 3: Cross multiply
    123,564.12x = 170,554.73 × 71,893.37
  4. Step 4: Simplify right side
    123,564.12x = 12,261,754,780.46
  5. Step 5: Solve for x
    x = 12,261,754,780.46/123,564.12
  6. Step 6: Final answer
    x = 99,233.95

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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.