Home / 161,676.48-242,299.80-85,759.38

Finding the Fourth Proportional to 161,676.48, 242,299.80 and 85,759.38

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Solution

The fourth proportional to 161,676.48, 242,299.80 and 85,759.38 is: 128,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,676.48 : 242,299.80 = 85,759.38 : x
  2. Step 2: Convert to fraction form
    161,676.48/242,299.80 = 85,759.38/x
  3. Step 3: Cross multiply
    161,676.48x = 242,299.80 × 85,759.38
  4. Step 4: Simplify right side
    161,676.48x = 20,779,480,622.12
  5. Step 5: Solve for x
    x = 20,779,480,622.12/161,676.48
  6. Step 6: Final answer
    x = 128,525.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.