Home / 112,813.74-155,682.81-61,829.67

Finding the Fourth Proportional to 112,813.74, 155,682.81 and 61,829.67

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Solution

The fourth proportional to 112,813.74, 155,682.81 and 61,829.67 is: 85,324.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,813.74 : 155,682.81 = 61,829.67 : x
  2. Step 2: Convert to fraction form
    112,813.74/155,682.81 = 61,829.67/x
  3. Step 3: Cross multiply
    112,813.74x = 155,682.81 × 61,829.67
  4. Step 4: Simplify right side
    112,813.74x = 9,625,816,766.97
  5. Step 5: Solve for x
    x = 9,625,816,766.97/112,813.74
  6. Step 6: Final answer
    x = 85,324.86

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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.