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Finding the Fourth Proportional to 181,410.60, 272,018.70 and 76,110.60

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Solution

The fourth proportional to 181,410.60, 272,018.70 and 76,110.60 is: 114,125.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,410.60 : 272,018.70 = 76,110.60 : x
  2. Step 2: Convert to fraction form
    181,410.60/272,018.70 = 76,110.60/x
  3. Step 3: Cross multiply
    181,410.60x = 272,018.70 × 76,110.60
  4. Step 4: Simplify right side
    181,410.60x = 20,703,506,468.22
  5. Step 5: Solve for x
    x = 20,703,506,468.22/181,410.60
  6. Step 6: Final answer
    x = 114,125.12

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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.