Home / 114,719.36-172,086.64-30,478.35

Finding the Fourth Proportional to 114,719.36, 172,086.64 and 30,478.35

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Solution

The fourth proportional to 114,719.36, 172,086.64 and 30,478.35 is: 45,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,719.36 : 172,086.64 = 30,478.35 : x
  2. Step 2: Convert to fraction form
    114,719.36/172,086.64 = 30,478.35/x
  3. Step 3: Cross multiply
    114,719.36x = 172,086.64 × 30,478.35
  4. Step 4: Simplify right side
    114,719.36x = 5,244,916,768.05
  5. Step 5: Solve for x
    x = 5,244,916,768.05/114,719.36
  6. Step 6: Final answer
    x = 45,719.54

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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.