Home / 105,769.36-145,960.90-58,022.38

Finding the Fourth Proportional to 105,769.36, 145,960.90 and 58,022.38

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Solution

The fourth proportional to 105,769.36, 145,960.90 and 58,022.38 is: 80,070.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,769.36 : 145,960.90 = 58,022.38 : x
  2. Step 2: Convert to fraction form
    105,769.36/145,960.90 = 58,022.38/x
  3. Step 3: Cross multiply
    105,769.36x = 145,960.90 × 58,022.38
  4. Step 4: Simplify right side
    105,769.36x = 8,468,998,804.94
  5. Step 5: Solve for x
    x = 8,468,998,804.94/105,769.36
  6. Step 6: Final answer
    x = 80,070.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.