Home / 112,478.92-155,220.78-61,491.94

Finding the Fourth Proportional to 112,478.92, 155,220.78 and 61,491.94

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Solution

The fourth proportional to 112,478.92, 155,220.78 and 61,491.94 is: 84,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,478.92 : 155,220.78 = 61,491.94 : x
  2. Step 2: Convert to fraction form
    112,478.92/155,220.78 = 61,491.94/x
  3. Step 3: Cross multiply
    112,478.92x = 155,220.78 × 61,491.94
  4. Step 4: Simplify right side
    112,478.92x = 9,544,826,890.51
  5. Step 5: Solve for x
    x = 9,544,826,890.51/112,478.92
  6. Step 6: Final answer
    x = 84,858.81

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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.