Home / 115,911.96-159,962.44-64,926.88

Finding the Fourth Proportional to 115,911.96, 159,962.44 and 64,926.88

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Solution

The fourth proportional to 115,911.96, 159,962.44 and 64,926.88 is: 89,601.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,911.96 : 159,962.44 = 64,926.88 : x
  2. Step 2: Convert to fraction form
    115,911.96/159,962.44 = 64,926.88/x
  3. Step 3: Cross multiply
    115,911.96x = 159,962.44 × 64,926.88
  4. Step 4: Simplify right side
    115,911.96x = 10,385,862,146.39
  5. Step 5: Solve for x
    x = 10,385,862,146.39/115,911.96
  6. Step 6: Final answer
    x = 89,601.30

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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.