Home / 112,312.07-168,467.42-28,071.81

Finding the Fourth Proportional to 112,312.07, 168,467.42 and 28,071.81

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Solution

The fourth proportional to 112,312.07, 168,467.42 and 28,071.81 is: 42,107.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,312.07 : 168,467.42 = 28,071.81 : x
  2. Step 2: Convert to fraction form
    112,312.07/168,467.42 = 28,071.81/x
  3. Step 3: Cross multiply
    112,312.07x = 168,467.42 × 28,071.81
  4. Step 4: Simplify right side
    112,312.07x = 4,729,185,405.43
  5. Step 5: Solve for x
    x = 4,729,185,405.43/112,312.07
  6. Step 6: Final answer
    x = 42,107.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.