Home / 156,908.24-216,533.76-85,288.16

Finding the Fourth Proportional to 156,908.24, 216,533.76 and 85,288.16

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Solution

The fourth proportional to 156,908.24, 216,533.76 and 85,288.16 is: 117,697.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,908.24 : 216,533.76 = 85,288.16 : x
  2. Step 2: Convert to fraction form
    156,908.24/216,533.76 = 85,288.16/x
  3. Step 3: Cross multiply
    156,908.24x = 216,533.76 × 85,288.16
  4. Step 4: Simplify right side
    156,908.24x = 18,467,765,968.28
  5. Step 5: Solve for x
    x = 18,467,765,968.28/156,908.24
  6. Step 6: Final answer
    x = 117,697.87

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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.