Home / 118,834.61-178,131.97-74,492.50

Finding the Fourth Proportional to 118,834.61, 178,131.97 and 74,492.50

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Solution

The fourth proportional to 118,834.61, 178,131.97 and 74,492.50 is: 111,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,834.61 : 178,131.97 = 74,492.50 : x
  2. Step 2: Convert to fraction form
    118,834.61/178,131.97 = 74,492.50/x
  3. Step 3: Cross multiply
    118,834.61x = 178,131.97 × 74,492.50
  4. Step 4: Simplify right side
    118,834.61x = 13,269,495,775.23
  5. Step 5: Solve for x
    x = 13,269,495,775.23/118,834.61
  6. Step 6: Final answer
    x = 111,663.56

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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.