Home / 116,986.68-161,367.30-76,703.07

Finding the Fourth Proportional to 116,986.68, 161,367.30 and 76,703.07

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Solution

The fourth proportional to 116,986.68, 161,367.30 and 76,703.07 is: 105,801.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,986.68 : 161,367.30 = 76,703.07 : x
  2. Step 2: Convert to fraction form
    116,986.68/161,367.30 = 76,703.07/x
  3. Step 3: Cross multiply
    116,986.68x = 161,367.30 × 76,703.07
  4. Step 4: Simplify right side
    116,986.68x = 12,377,367,307.61
  5. Step 5: Solve for x
    x = 12,377,367,307.61/116,986.68
  6. Step 6: Final answer
    x = 105,801.51

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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.