Home / 123,890.70-170,969.37-67,302.12

Finding the Fourth Proportional to 123,890.70, 170,969.37 and 67,302.12

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Solution

The fourth proportional to 123,890.70, 170,969.37 and 67,302.12 is: 92,877.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,890.70 : 170,969.37 = 67,302.12 : x
  2. Step 2: Convert to fraction form
    123,890.70/170,969.37 = 67,302.12/x
  3. Step 3: Cross multiply
    123,890.70x = 170,969.37 × 67,302.12
  4. Step 4: Simplify right side
    123,890.70x = 11,506,601,056.06
  5. Step 5: Solve for x
    x = 11,506,601,056.06/123,890.70
  6. Step 6: Final answer
    x = 92,877.04

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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.