Home / 113,421.16-170,131.74-30,313

Finding the Fourth Proportional to 113,421.16, 170,131.74 and 30,313

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Solution

The fourth proportional to 113,421.16, 170,131.74 and 30,313 is: 45,469.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,421.16 : 170,131.74 = 30,313 : x
  2. Step 2: Convert to fraction form
    113,421.16/170,131.74 = 30,313/x
  3. Step 3: Cross multiply
    113,421.16x = 170,131.74 × 30,313
  4. Step 4: Simplify right side
    113,421.16x = 5,157,203,434.62
  5. Step 5: Solve for x
    x = 5,157,203,434.62/113,421.16
  6. Step 6: Final answer
    x = 45,469.50

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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.