Home / 123,201.15-170,017.55-69,486.05

Finding the Fourth Proportional to 123,201.15, 170,017.55 and 69,486.05

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Solution

The fourth proportional to 123,201.15, 170,017.55 and 69,486.05 is: 95,890.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,201.15 : 170,017.55 = 69,486.05 : x
  2. Step 2: Convert to fraction form
    123,201.15/170,017.55 = 69,486.05/x
  3. Step 3: Cross multiply
    123,201.15x = 170,017.55 × 69,486.05
  4. Step 4: Simplify right side
    123,201.15x = 11,813,846,782.66
  5. Step 5: Solve for x
    x = 11,813,846,782.66/123,201.15
  6. Step 6: Final answer
    x = 95,890.72

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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.