Home / 118,997.07-178,252.61-66,434.55

Finding the Fourth Proportional to 118,997.07, 178,252.61 and 66,434.55

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Solution

The fourth proportional to 118,997.07, 178,252.61 and 66,434.55 is: 99,516.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,997.07 : 178,252.61 = 66,434.55 : x
  2. Step 2: Convert to fraction form
    118,997.07/178,252.61 = 66,434.55/x
  3. Step 3: Cross multiply
    118,997.07x = 178,252.61 × 66,434.55
  4. Step 4: Simplify right side
    118,997.07x = 11,842,131,599.50
  5. Step 5: Solve for x
    x = 11,842,131,599.50/118,997.07
  6. Step 6: Final answer
    x = 99,516.16

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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.