Home / 116,629.34-160,961.45-65,643.62

Finding the Fourth Proportional to 116,629.34, 160,961.45 and 65,643.62

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Solution

The fourth proportional to 116,629.34, 160,961.45 and 65,643.62 is: 90,595.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,629.34 : 160,961.45 = 65,643.62 : x
  2. Step 2: Convert to fraction form
    116,629.34/160,961.45 = 65,643.62/x
  3. Step 3: Cross multiply
    116,629.34x = 160,961.45 × 65,643.62
  4. Step 4: Simplify right side
    116,629.34x = 10,566,091,125.42
  5. Step 5: Solve for x
    x = 10,566,091,125.42/116,629.34
  6. Step 6: Final answer
    x = 90,595.48

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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.