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Finding the Fourth Proportional to 181,980.60, 272,873.70 and 76,680.60

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Solution

The fourth proportional to 181,980.60, 272,873.70 and 76,680.60 is: 114,979.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,980.60 : 272,873.70 = 76,680.60 : x
  2. Step 2: Convert to fraction form
    181,980.60/272,873.70 = 76,680.60/x
  3. Step 3: Cross multiply
    181,980.60x = 272,873.70 × 76,680.60
  4. Step 4: Simplify right side
    181,980.60x = 20,924,119,040.22
  5. Step 5: Solve for x
    x = 20,924,119,040.22/181,980.60
  6. Step 6: Final answer
    x = 114,979.94

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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.