Home / 156,935.88-216,572.92-85,316.04

Finding the Fourth Proportional to 156,935.88, 216,572.92 and 85,316.04

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Solution

The fourth proportional to 156,935.88, 216,572.92 and 85,316.04 is: 117,736.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.88 : 216,572.92 = 85,316.04 : x
  2. Step 2: Convert to fraction form
    156,935.88/216,572.92 = 85,316.04/x
  3. Step 3: Cross multiply
    156,935.88x = 216,572.92 × 85,316.04
  4. Step 4: Simplify right side
    156,935.88x = 18,477,143,905.64
  5. Step 5: Solve for x
    x = 18,477,143,905.64/156,935.88
  6. Step 6: Final answer
    x = 117,736.90

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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.