Home / 112,205.06-168,178.32-45,572

Finding the Fourth Proportional to 112,205.06, 168,178.32 and 45,572

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Solution

The fourth proportional to 112,205.06, 168,178.32 and 45,572 is: 68,305.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,205.06 : 168,178.32 = 45,572 : x
  2. Step 2: Convert to fraction form
    112,205.06/168,178.32 = 45,572/x
  3. Step 3: Cross multiply
    112,205.06x = 168,178.32 × 45,572
  4. Step 4: Simplify right side
    112,205.06x = 7,664,222,399.04
  5. Step 5: Solve for x
    x = 7,664,222,399.04/112,205.06
  6. Step 6: Final answer
    x = 68,305.50

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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.