Home / 115,318.31-159,136.52-64,335.96

Finding the Fourth Proportional to 115,318.31, 159,136.52 and 64,335.96

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Solution

The fourth proportional to 115,318.31, 159,136.52 and 64,335.96 is: 88,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,318.31 : 159,136.52 = 64,335.96 : x
  2. Step 2: Convert to fraction form
    115,318.31/159,136.52 = 64,335.96/x
  3. Step 3: Cross multiply
    115,318.31x = 159,136.52 × 64,335.96
  4. Step 4: Simplify right side
    115,318.31x = 10,238,200,463.58
  5. Step 5: Solve for x
    x = 10,238,200,463.58/115,318.31
  6. Step 6: Final answer
    x = 88,782.09

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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.