Home / 116,958.38-161,390.45-86,347.76

Finding the Fourth Proportional to 116,958.38, 161,390.45 and 86,347.76

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Solution

The fourth proportional to 116,958.38, 161,390.45 and 86,347.76 is: 119,150.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,958.38 : 161,390.45 = 86,347.76 : x
  2. Step 2: Convert to fraction form
    116,958.38/161,390.45 = 86,347.76/x
  3. Step 3: Cross multiply
    116,958.38x = 161,390.45 × 86,347.76
  4. Step 4: Simplify right side
    116,958.38x = 13,935,704,462.24
  5. Step 5: Solve for x
    x = 13,935,704,462.24/116,958.38
  6. Step 6: Final answer
    x = 119,150.98

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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.