Home / 112,312.32-168,467.80-28,072.06

Finding the Fourth Proportional to 112,312.32, 168,467.80 and 28,072.06

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Solution

The fourth proportional to 112,312.32, 168,467.80 and 28,072.06 is: 42,107.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,312.32 : 168,467.80 = 28,072.06 : x
  2. Step 2: Convert to fraction form
    112,312.32/168,467.80 = 28,072.06/x
  3. Step 3: Cross multiply
    112,312.32x = 168,467.80 × 28,072.06
  4. Step 4: Simplify right side
    112,312.32x = 4,729,238,189.67
  5. Step 5: Solve for x
    x = 4,729,238,189.67/112,312.32
  6. Step 6: Final answer
    x = 42,107.92

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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.