Home / 118,774.07-178,129.95-43,915.62

Finding the Fourth Proportional to 118,774.07, 178,129.95 and 43,915.62

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Solution

The fourth proportional to 118,774.07, 178,129.95 and 43,915.62 is: 65,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,774.07 : 178,129.95 = 43,915.62 : x
  2. Step 2: Convert to fraction form
    118,774.07/178,129.95 = 43,915.62/x
  3. Step 3: Cross multiply
    118,774.07x = 178,129.95 × 43,915.62
  4. Step 4: Simplify right side
    118,774.07x = 7,822,687,194.82
  5. Step 5: Solve for x
    x = 7,822,687,194.82/118,774.07
  6. Step 6: Final answer
    x = 65,861.91

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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.