Home / 109,940.10-164,910.15-70,574.10

Finding the Fourth Proportional to 109,940.10, 164,910.15 and 70,574.10

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Solution

The fourth proportional to 109,940.10, 164,910.15 and 70,574.10 is: 105,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,940.10 : 164,910.15 = 70,574.10 : x
  2. Step 2: Convert to fraction form
    109,940.10/164,910.15 = 70,574.10/x
  3. Step 3: Cross multiply
    109,940.10x = 164,910.15 × 70,574.10
  4. Step 4: Simplify right side
    109,940.10x = 11,638,385,417.12
  5. Step 5: Solve for x
    x = 11,638,385,417.12/109,940.10
  6. Step 6: Final answer
    x = 105,861.15

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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.