Home / 156,945.37-216,582.04-85,327.20

Finding the Fourth Proportional to 156,945.37, 216,582.04 and 85,327.20

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Solution

The fourth proportional to 156,945.37, 216,582.04 and 85,327.20 is: 117,750.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,945.37 : 216,582.04 = 85,327.20 : x
  2. Step 2: Convert to fraction form
    156,945.37/216,582.04 = 85,327.20/x
  3. Step 3: Cross multiply
    156,945.37x = 216,582.04 × 85,327.20
  4. Step 4: Simplify right side
    156,945.37x = 18,480,339,043.49
  5. Step 5: Solve for x
    x = 18,480,339,043.49/156,945.37
  6. Step 6: Final answer
    x = 117,750.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.