Home / 161,989.20-243,056.70-56,883.60

Finding the Fourth Proportional to 161,989.20, 243,056.70 and 56,883.60

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Solution

The fourth proportional to 161,989.20, 243,056.70 and 56,883.60 is: 85,351.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,989.20 : 243,056.70 = 56,883.60 : x
  2. Step 2: Convert to fraction form
    161,989.20/243,056.70 = 56,883.60/x
  3. Step 3: Cross multiply
    161,989.20x = 243,056.70 × 56,883.60
  4. Step 4: Simplify right side
    161,989.20x = 13,825,940,100.12
  5. Step 5: Solve for x
    x = 13,825,940,100.12/161,989.20
  6. Step 6: Final answer
    x = 85,351.00

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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.