Home / 115,611.18-159,540.08-64,624.01

Finding the Fourth Proportional to 115,611.18, 159,540.08 and 64,624.01

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Solution

The fourth proportional to 115,611.18, 159,540.08 and 64,624.01 is: 89,179.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,611.18 : 159,540.08 = 64,624.01 : x
  2. Step 2: Convert to fraction form
    115,611.18/159,540.08 = 64,624.01/x
  3. Step 3: Cross multiply
    115,611.18x = 159,540.08 × 64,624.01
  4. Step 4: Simplify right side
    115,611.18x = 10,310,118,604.50
  5. Step 5: Solve for x
    x = 10,310,118,604.50/115,611.18
  6. Step 6: Final answer
    x = 89,179.25

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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.