Home / 115,237.64-159,160.36-76,930.50

Finding the Fourth Proportional to 115,237.64, 159,160.36 and 76,930.50

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Solution

The fourth proportional to 115,237.64, 159,160.36 and 76,930.50 is: 106,252.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,237.64 : 159,160.36 = 76,930.50 : x
  2. Step 2: Convert to fraction form
    115,237.64/159,160.36 = 76,930.50/x
  3. Step 3: Cross multiply
    115,237.64x = 159,160.36 × 76,930.50
  4. Step 4: Simplify right side
    115,237.64x = 12,244,286,074.98
  5. Step 5: Solve for x
    x = 12,244,286,074.98/115,237.64
  6. Step 6: Final answer
    x = 106,252.49

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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.