Home / 109,807.30-164,516.55-102,808.90

Finding the Fourth Proportional to 109,807.30, 164,516.55 and 102,808.90

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Solution

The fourth proportional to 109,807.30, 164,516.55 and 102,808.90 is: 154,031.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,807.30 : 164,516.55 = 102,808.90 : x
  2. Step 2: Convert to fraction form
    109,807.30/164,516.55 = 102,808.90/x
  3. Step 3: Cross multiply
    109,807.30x = 164,516.55 × 102,808.90
  4. Step 4: Simplify right side
    109,807.30x = 16,913,765,537.30
  5. Step 5: Solve for x
    x = 16,913,765,537.30/109,807.30
  6. Step 6: Final answer
    x = 154,031.34

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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.