Home / 112,774.70-155,629.68-63,716.54

Finding the Fourth Proportional to 112,774.70, 155,629.68 and 63,716.54

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Solution

The fourth proportional to 112,774.70, 155,629.68 and 63,716.54 is: 87,929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,774.70 : 155,629.68 = 63,716.54 : x
  2. Step 2: Convert to fraction form
    112,774.70/155,629.68 = 63,716.54/x
  3. Step 3: Cross multiply
    112,774.70x = 155,629.68 × 63,716.54
  4. Step 4: Simplify right side
    112,774.70x = 9,916,184,730.91
  5. Step 5: Solve for x
    x = 9,916,184,730.91/112,774.70
  6. Step 6: Final answer
    x = 87,929.16

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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.