Home / 118,973.88-178,455.69-40,087.80

Finding the Fourth Proportional to 118,973.88, 178,455.69 and 40,087.80

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Solution

The fourth proportional to 118,973.88, 178,455.69 and 40,087.80 is: 60,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,973.88 : 178,455.69 = 40,087.80 : x
  2. Step 2: Convert to fraction form
    118,973.88/178,455.69 = 40,087.80/x
  3. Step 3: Cross multiply
    118,973.88x = 178,455.69 × 40,087.80
  4. Step 4: Simplify right side
    118,973.88x = 7,153,896,009.58
  5. Step 5: Solve for x
    x = 7,153,896,009.58/118,973.88
  6. Step 6: Final answer
    x = 60,129.97

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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.