Home / 116,177.70-160,427.47-72,644.86

Finding the Fourth Proportional to 116,177.70, 160,427.47 and 72,644.86

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Solution

The fourth proportional to 116,177.70, 160,427.47 and 72,644.86 is: 100,313.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,177.70 : 160,427.47 = 72,644.86 : x
  2. Step 2: Convert to fraction form
    116,177.70/160,427.47 = 72,644.86/x
  3. Step 3: Cross multiply
    116,177.70x = 160,427.47 × 72,644.86
  4. Step 4: Simplify right side
    116,177.70x = 11,654,230,495.76
  5. Step 5: Solve for x
    x = 11,654,230,495.76/116,177.70
  6. Step 6: Final answer
    x = 100,313.83

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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.