Home / 115,558.44-159,468.64-64,572.20

Finding the Fourth Proportional to 115,558.44, 159,468.64 and 64,572.20

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Solution

The fourth proportional to 115,558.44, 159,468.64 and 64,572.20 is: 89,108.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,558.44 : 159,468.64 = 64,572.20 : x
  2. Step 2: Convert to fraction form
    115,558.44/159,468.64 = 64,572.20/x
  3. Step 3: Cross multiply
    115,558.44x = 159,468.64 × 64,572.20
  4. Step 4: Simplify right side
    115,558.44x = 10,297,240,915.81
  5. Step 5: Solve for x
    x = 10,297,240,915.81/115,558.44
  6. Step 6: Final answer
    x = 89,108.51

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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.