Home / 112,467.89-155,207.14-61,479.81

Finding the Fourth Proportional to 112,467.89, 155,207.14 and 61,479.81

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Solution

The fourth proportional to 112,467.89, 155,207.14 and 61,479.81 is: 84,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,467.89 : 155,207.14 = 61,479.81 : x
  2. Step 2: Convert to fraction form
    112,467.89/155,207.14 = 61,479.81/x
  3. Step 3: Cross multiply
    112,467.89x = 155,207.14 × 61,479.81
  4. Step 4: Simplify right side
    112,467.89x = 9,542,105,324.14
  5. Step 5: Solve for x
    x = 9,542,105,324.14/112,467.89
  6. Step 6: Final answer
    x = 84,842.93

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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.