Home / 102,908.20-154,070.70-92,410.60

Finding the Fourth Proportional to 102,908.20, 154,070.70 and 92,410.60

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Solution

The fourth proportional to 102,908.20, 154,070.70 and 92,410.60 is: 138,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,908.20 : 154,070.70 = 92,410.60 : x
  2. Step 2: Convert to fraction form
    102,908.20/154,070.70 = 92,410.60/x
  3. Step 3: Cross multiply
    102,908.20x = 154,070.70 × 92,410.60
  4. Step 4: Simplify right side
    102,908.20x = 14,237,765,829.42
  5. Step 5: Solve for x
    x = 14,237,765,829.42/102,908.20
  6. Step 6: Final answer
    x = 138,354.05

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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.