Home / 156,745.33-216,308.51-85,125.37

Finding the Fourth Proportional to 156,745.33, 216,308.51 and 85,125.37

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Solution

The fourth proportional to 156,745.33, 216,308.51 and 85,125.37 is: 117,472.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,745.33 : 216,308.51 = 85,125.37 : x
  2. Step 2: Convert to fraction form
    156,745.33/216,308.51 = 85,125.37/x
  3. Step 3: Cross multiply
    156,745.33x = 216,308.51 × 85,125.37
  4. Step 4: Simplify right side
    156,745.33x = 18,413,341,522.27
  5. Step 5: Solve for x
    x = 18,413,341,522.27/156,745.33
  6. Step 6: Final answer
    x = 117,472.98

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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.