Home / 117,873.29-162,668.66-72,577.40

Finding the Fourth Proportional to 117,873.29, 162,668.66 and 72,577.40

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Solution

The fourth proportional to 117,873.29, 162,668.66 and 72,577.40 is: 100,158.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,873.29 : 162,668.66 = 72,577.40 : x
  2. Step 2: Convert to fraction form
    117,873.29/162,668.66 = 72,577.40/x
  3. Step 3: Cross multiply
    117,873.29x = 162,668.66 × 72,577.40
  4. Step 4: Simplify right side
    117,873.29x = 11,806,067,228.05
  5. Step 5: Solve for x
    x = 11,806,067,228.05/117,873.29
  6. Step 6: Final answer
    x = 100,158.97

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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.