Home / 121,389.85-182,086.46-46,513.78

Finding the Fourth Proportional to 121,389.85, 182,086.46 and 46,513.78

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Solution

The fourth proportional to 121,389.85, 182,086.46 and 46,513.78 is: 69,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,389.85 : 182,086.46 = 46,513.78 : x
  2. Step 2: Convert to fraction form
    121,389.85/182,086.46 = 46,513.78/x
  3. Step 3: Cross multiply
    121,389.85x = 182,086.46 × 46,513.78
  4. Step 4: Simplify right side
    121,389.85x = 8,469,529,541.42
  5. Step 5: Solve for x
    x = 8,469,529,541.42/121,389.85
  6. Step 6: Final answer
    x = 69,771.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.