Home / 113,430.78-170,133.21-30,331.26

Finding the Fourth Proportional to 113,430.78, 170,133.21 and 30,331.26

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Solution

The fourth proportional to 113,430.78, 170,133.21 and 30,331.26 is: 45,493.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,430.78 : 170,133.21 = 30,331.26 : x
  2. Step 2: Convert to fraction form
    113,430.78/170,133.21 = 30,331.26/x
  3. Step 3: Cross multiply
    113,430.78x = 170,133.21 × 30,331.26
  4. Step 4: Simplify right side
    113,430.78x = 5,160,354,627.14
  5. Step 5: Solve for x
    x = 5,160,354,627.14/113,430.78
  6. Step 6: Final answer
    x = 45,493.42

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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.