Home / 123,823.69-170,879.19-75,427.66

Finding the Fourth Proportional to 123,823.69, 170,879.19 and 75,427.66

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Solution

The fourth proportional to 123,823.69, 170,879.19 and 75,427.66 is: 104,091.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,823.69 : 170,879.19 = 75,427.66 : x
  2. Step 2: Convert to fraction form
    123,823.69/170,879.19 = 75,427.66/x
  3. Step 3: Cross multiply
    123,823.69x = 170,879.19 × 75,427.66
  4. Step 4: Simplify right side
    123,823.69x = 12,889,017,050.37
  5. Step 5: Solve for x
    x = 12,889,017,050.37/123,823.69
  6. Step 6: Final answer
    x = 104,091.69

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1.5x scale

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.