Home / 115,277.76-159,077.76-64,976.64

Finding the Fourth Proportional to 115,277.76, 159,077.76 and 64,976.64

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Solution

The fourth proportional to 115,277.76, 159,077.76 and 64,976.64 is: 89,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,277.76 : 159,077.76 = 64,976.64 : x
  2. Step 2: Convert to fraction form
    115,277.76/159,077.76 = 64,976.64/x
  3. Step 3: Cross multiply
    115,277.76x = 159,077.76 × 64,976.64
  4. Step 4: Simplify right side
    115,277.76x = 10,336,338,343.53
  5. Step 5: Solve for x
    x = 10,336,338,343.53/115,277.76
  6. Step 6: Final answer
    x = 89,664.64

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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.