Home / 105,196.70-145,169.14-57,450.24

Finding the Fourth Proportional to 105,196.70, 145,169.14 and 57,450.24

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Solution

The fourth proportional to 105,196.70, 145,169.14 and 57,450.24 is: 79,280.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,196.70 : 145,169.14 = 57,450.24 : x
  2. Step 2: Convert to fraction form
    105,196.70/145,169.14 = 57,450.24/x
  3. Step 3: Cross multiply
    105,196.70x = 145,169.14 × 57,450.24
  4. Step 4: Simplify right side
    105,196.70x = 8,340,001,933.59
  5. Step 5: Solve for x
    x = 8,340,001,933.59/105,196.70
  6. Step 6: Final answer
    x = 79,280.07

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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.