Home / 105,246.72-145,241.76-57,500.64

Finding the Fourth Proportional to 105,246.72, 145,241.76 and 57,500.64

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Solution

The fourth proportional to 105,246.72, 145,241.76 and 57,500.64 is: 79,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,246.72 : 145,241.76 = 57,500.64 : x
  2. Step 2: Convert to fraction form
    105,246.72/145,241.76 = 57,500.64/x
  3. Step 3: Cross multiply
    105,246.72x = 145,241.76 × 57,500.64
  4. Step 4: Simplify right side
    105,246.72x = 8,351,494,154.73
  5. Step 5: Solve for x
    x = 8,351,494,154.73/105,246.72
  6. Step 6: Final answer
    x = 79,351.59

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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.