Home / 112,405.73-168,559.32-42,235.79

Finding the Fourth Proportional to 112,405.73, 168,559.32 and 42,235.79

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Solution

The fourth proportional to 112,405.73, 168,559.32 and 42,235.79 is: 63,335.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,405.73 : 168,559.32 = 42,235.79 : x
  2. Step 2: Convert to fraction form
    112,405.73/168,559.32 = 42,235.79/x
  3. Step 3: Cross multiply
    112,405.73x = 168,559.32 × 42,235.79
  4. Step 4: Simplify right side
    112,405.73x = 7,119,236,042.06
  5. Step 5: Solve for x
    x = 7,119,236,042.06/112,405.73
  6. Step 6: Final answer
    x = 63,335.17

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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.