Home / 115,942.08-159,963.76-64,947.93

Finding the Fourth Proportional to 115,942.08, 159,963.76 and 64,947.93

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Solution

The fourth proportional to 115,942.08, 159,963.76 and 64,947.93 is: 89,607.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,942.08 : 159,963.76 = 64,947.93 : x
  2. Step 2: Convert to fraction form
    115,942.08/159,963.76 = 64,947.93/x
  3. Step 3: Cross multiply
    115,942.08x = 159,963.76 × 64,947.93
  4. Step 4: Simplify right side
    115,942.08x = 10,389,314,124.83
  5. Step 5: Solve for x
    x = 10,389,314,124.83/115,942.08
  6. Step 6: Final answer
    x = 89,607.79

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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.