Home / 115,829.21-159,830.83-64,844.73

Finding the Fourth Proportional to 115,829.21, 159,830.83 and 64,844.73

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Solution

The fourth proportional to 115,829.21, 159,830.83 and 64,844.73 is: 89,478.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,829.21 : 159,830.83 = 64,844.73 : x
  2. Step 2: Convert to fraction form
    115,829.21/159,830.83 = 64,844.73/x
  3. Step 3: Cross multiply
    115,829.21x = 159,830.83 × 64,844.73
  4. Step 4: Simplify right side
    115,829.21x = 10,364,186,692.80
  5. Step 5: Solve for x
    x = 10,364,186,692.80/115,829.21
  6. Step 6: Final answer
    x = 89,478.18

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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.