Home / 123,741.92-170,675.62-113,565.74

Finding the Fourth Proportional to 123,741.92, 170,675.62 and 113,565.74

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Solution

The fourth proportional to 123,741.92, 170,675.62 and 113,565.74 is: 156,639.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,741.92 : 170,675.62 = 113,565.74 : x
  2. Step 2: Convert to fraction form
    123,741.92/170,675.62 = 113,565.74/x
  3. Step 3: Cross multiply
    123,741.92x = 170,675.62 × 113,565.74
  4. Step 4: Simplify right side
    123,741.92x = 19,382,903,085.26
  5. Step 5: Solve for x
    x = 19,382,903,085.26/123,741.92
  6. Step 6: Final answer
    x = 156,639.75

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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.