Home / 105,460.36-145,535.78-57,713.64

Finding the Fourth Proportional to 105,460.36, 145,535.78 and 57,713.64

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Solution

The fourth proportional to 105,460.36, 145,535.78 and 57,713.64 is: 79,645.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,460.36 : 145,535.78 = 57,713.64 : x
  2. Step 2: Convert to fraction form
    105,460.36/145,535.78 = 57,713.64/x
  3. Step 3: Cross multiply
    105,460.36x = 145,535.78 × 57,713.64
  4. Step 4: Simplify right side
    105,460.36x = 8,399,399,614.04
  5. Step 5: Solve for x
    x = 8,399,399,614.04/105,460.36
  6. Step 6: Final answer
    x = 79,645.09

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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.