Home / 113,438.66-170,157.99-30,330.50

Finding the Fourth Proportional to 113,438.66, 170,157.99 and 30,330.50

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Solution

The fourth proportional to 113,438.66, 170,157.99 and 30,330.50 is: 45,495.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,438.66 : 170,157.99 = 30,330.50 : x
  2. Step 2: Convert to fraction form
    113,438.66/170,157.99 = 30,330.50/x
  3. Step 3: Cross multiply
    113,438.66x = 170,157.99 × 30,330.50
  4. Step 4: Simplify right side
    113,438.66x = 5,160,976,915.70
  5. Step 5: Solve for x
    x = 5,160,976,915.70/113,438.66
  6. Step 6: Final answer
    x = 45,495.75

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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.