Home / 118,687.04-177,993.65-39,782.81

Finding the Fourth Proportional to 118,687.04, 177,993.65 and 39,782.81

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Solution

The fourth proportional to 118,687.04, 177,993.65 and 39,782.81 is: 59,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,687.04 : 177,993.65 = 39,782.81 : x
  2. Step 2: Convert to fraction form
    118,687.04/177,993.65 = 39,782.81/x
  3. Step 3: Cross multiply
    118,687.04x = 177,993.65 × 39,782.81
  4. Step 4: Simplify right side
    118,687.04x = 7,081,088,103.60
  5. Step 5: Solve for x
    x = 7,081,088,103.60/118,687.04
  6. Step 6: Final answer
    x = 59,661.85

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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.