Home / 118,619.26-177,732.05-83,485.11

Finding the Fourth Proportional to 118,619.26, 177,732.05 and 83,485.11

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Solution

The fourth proportional to 118,619.26, 177,732.05 and 83,485.11 is: 125,089.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,619.26 : 177,732.05 = 83,485.11 : x
  2. Step 2: Convert to fraction form
    118,619.26/177,732.05 = 83,485.11/x
  3. Step 3: Cross multiply
    118,619.26x = 177,732.05 × 83,485.11
  4. Step 4: Simplify right side
    118,619.26x = 14,837,979,744.78
  5. Step 5: Solve for x
    x = 14,837,979,744.78/118,619.26
  6. Step 6: Final answer
    x = 125,089.13

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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.