Home / 109,916.10-164,874.15-70,550.10

Finding the Fourth Proportional to 109,916.10, 164,874.15 and 70,550.10

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Solution

The fourth proportional to 109,916.10, 164,874.15 and 70,550.10 is: 105,825.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,916.10 : 164,874.15 = 70,550.10 : x
  2. Step 2: Convert to fraction form
    109,916.10/164,874.15 = 70,550.10/x
  3. Step 3: Cross multiply
    109,916.10x = 164,874.15 × 70,550.10
  4. Step 4: Simplify right side
    109,916.10x = 11,631,887,769.92
  5. Step 5: Solve for x
    x = 11,631,887,769.92/109,916.10
  6. Step 6: Final answer
    x = 105,825.15

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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.