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Finding the Fourth Proportional to 111,657.60, 167,097.60 and 76,665.60

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Solution

The fourth proportional to 111,657.60, 167,097.60 and 76,665.60 is: 114,731.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,657.60 : 167,097.60 = 76,665.60 : x
  2. Step 2: Convert to fraction form
    111,657.60/167,097.60 = 76,665.60/x
  3. Step 3: Cross multiply
    111,657.60x = 167,097.60 × 76,665.60
  4. Step 4: Simplify right side
    111,657.60x = 12,810,637,762.56
  5. Step 5: Solve for x
    x = 12,810,637,762.56/111,657.60
  6. Step 6: Final answer
    x = 114,731.44

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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.