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Finding the Fourth Proportional to 118,618.60, 178,025.10 and 114,730.60

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Solution

The fourth proportional to 118,618.60, 178,025.10 and 114,730.60 is: 172,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,618.60 : 178,025.10 = 114,730.60 : x
  2. Step 2: Convert to fraction form
    118,618.60/178,025.10 = 114,730.60/x
  3. Step 3: Cross multiply
    118,618.60x = 178,025.10 × 114,730.60
  4. Step 4: Simplify right side
    118,618.60x = 20,424,926,538.06
  5. Step 5: Solve for x
    x = 20,424,926,538.06/118,618.60
  6. Step 6: Final answer
    x = 172,189.91

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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.