Home / 112,768.30-169,086.84-42,653.08

Finding the Fourth Proportional to 112,768.30, 169,086.84 and 42,653.08

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Solution

The fourth proportional to 112,768.30, 169,086.84 and 42,653.08 is: 63,954.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,768.30 : 169,086.84 = 42,653.08 : x
  2. Step 2: Convert to fraction form
    112,768.30/169,086.84 = 42,653.08/x
  3. Step 3: Cross multiply
    112,768.30x = 169,086.84 × 42,653.08
  4. Step 4: Simplify right side
    112,768.30x = 7,212,074,804.80
  5. Step 5: Solve for x
    x = 7,212,074,804.80/112,768.30
  6. Step 6: Final answer
    x = 63,954.81

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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.