Home / 156,935.06-216,567.82-85,316.88

Finding the Fourth Proportional to 156,935.06, 216,567.82 and 85,316.88

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Solution

The fourth proportional to 156,935.06, 216,567.82 and 85,316.88 is: 117,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,935.06 : 216,567.82 = 85,316.88 : x
  2. Step 2: Convert to fraction form
    156,935.06/216,567.82 = 85,316.88/x
  3. Step 3: Cross multiply
    156,935.06x = 216,567.82 × 85,316.88
  4. Step 4: Simplify right side
    156,935.06x = 18,476,890,710.80
  5. Step 5: Solve for x
    x = 18,476,890,710.80/156,935.06
  6. Step 6: Final answer
    x = 117,735.90

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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.