Home / 118,916.20-178,374.30-115,460.20

Finding the Fourth Proportional to 118,916.20, 178,374.30 and 115,460.20

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Solution

The fourth proportional to 118,916.20, 178,374.30 and 115,460.20 is: 173,190.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,916.20 : 178,374.30 = 115,460.20 : x
  2. Step 2: Convert to fraction form
    118,916.20/178,374.30 = 115,460.20/x
  3. Step 3: Cross multiply
    118,916.20x = 178,374.30 × 115,460.20
  4. Step 4: Simplify right side
    118,916.20x = 20,595,132,352.86
  5. Step 5: Solve for x
    x = 20,595,132,352.86/118,916.20
  6. Step 6: Final answer
    x = 173,190.30

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1.5x scale

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.