Home / 116,870.26-161,245.07-71,500.95

Finding the Fourth Proportional to 116,870.26, 161,245.07 and 71,500.95

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Solution

The fourth proportional to 116,870.26, 161,245.07 and 71,500.95 is: 98,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,870.26 : 161,245.07 = 71,500.95 : x
  2. Step 2: Convert to fraction form
    116,870.26/161,245.07 = 71,500.95/x
  3. Step 3: Cross multiply
    116,870.26x = 161,245.07 × 71,500.95
  4. Step 4: Simplify right side
    116,870.26x = 11,529,175,687.82
  5. Step 5: Solve for x
    x = 11,529,175,687.82/116,870.26
  6. Step 6: Final answer
    x = 98,649.35

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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.