Home / 112,158.35-154,739.44-71,894.32

Finding the Fourth Proportional to 112,158.35, 154,739.44 and 71,894.32

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Solution

The fourth proportional to 112,158.35, 154,739.44 and 71,894.32 is: 99,189.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,158.35 : 154,739.44 = 71,894.32 : x
  2. Step 2: Convert to fraction form
    112,158.35/154,739.44 = 71,894.32/x
  3. Step 3: Cross multiply
    112,158.35x = 154,739.44 × 71,894.32
  4. Step 4: Simplify right side
    112,158.35x = 11,124,886,815.98
  5. Step 5: Solve for x
    x = 11,124,886,815.98/112,158.35
  6. Step 6: Final answer
    x = 99,189.11

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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.