Home / 108,623.80-162,927.60-45,427.60

Finding the Fourth Proportional to 108,623.80, 162,927.60 and 45,427.60

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Solution

The fourth proportional to 108,623.80, 162,927.60 and 45,427.60 is: 68,138.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,623.80 : 162,927.60 = 45,427.60 : x
  2. Step 2: Convert to fraction form
    108,623.80/162,927.60 = 45,427.60/x
  3. Step 3: Cross multiply
    108,623.80x = 162,927.60 × 45,427.60
  4. Step 4: Simplify right side
    108,623.80x = 7,401,409,841.76
  5. Step 5: Solve for x
    x = 7,401,409,841.76/108,623.80
  6. Step 6: Final answer
    x = 68,138.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.