Home / 112,757.67-155,605.61-61,772.22

Finding the Fourth Proportional to 112,757.67, 155,605.61 and 61,772.22

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Solution

The fourth proportional to 112,757.67, 155,605.61 and 61,772.22 is: 85,245.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,757.67 : 155,605.61 = 61,772.22 : x
  2. Step 2: Convert to fraction form
    112,757.67/155,605.61 = 61,772.22/x
  3. Step 3: Cross multiply
    112,757.67x = 155,605.61 × 61,772.22
  4. Step 4: Simplify right side
    112,757.67x = 9,612,103,665.29
  5. Step 5: Solve for x
    x = 9,612,103,665.29/112,757.67
  6. Step 6: Final answer
    x = 85,245.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.