Home / 105,468.80-145,550.40-57,725.12

Finding the Fourth Proportional to 105,468.80, 145,550.40 and 57,725.12

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Solution

The fourth proportional to 105,468.80, 145,550.40 and 57,725.12 is: 79,662.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,468.80 : 145,550.40 = 57,725.12 : x
  2. Step 2: Convert to fraction form
    105,468.80/145,550.40 = 57,725.12/x
  3. Step 3: Cross multiply
    105,468.80x = 145,550.40 × 57,725.12
  4. Step 4: Simplify right side
    105,468.80x = 8,401,914,306.05
  5. Step 5: Solve for x
    x = 8,401,914,306.05/105,468.80
  6. Step 6: Final answer
    x = 79,662.56

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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.