Home / 118,876.16-178,275.36-39,969.20

Finding the Fourth Proportional to 118,876.16, 178,275.36 and 39,969.20

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Solution

The fourth proportional to 118,876.16, 178,275.36 and 39,969.20 is: 59,940.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,876.16 : 178,275.36 = 39,969.20 : x
  2. Step 2: Convert to fraction form
    118,876.16/178,275.36 = 39,969.20/x
  3. Step 3: Cross multiply
    118,876.16x = 178,275.36 × 39,969.20
  4. Step 4: Simplify right side
    118,876.16x = 7,125,523,518.91
  5. Step 5: Solve for x
    x = 7,125,523,518.91/118,876.16
  6. Step 6: Final answer
    x = 59,940.73

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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.