Home / 102,813.56-154,220.33-57,837.90

Finding the Fourth Proportional to 102,813.56, 154,220.33 and 57,837.90

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Solution

The fourth proportional to 102,813.56, 154,220.33 and 57,837.90 is: 86,756.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,813.56 : 154,220.33 = 57,837.90 : x
  2. Step 2: Convert to fraction form
    102,813.56/154,220.33 = 57,837.90/x
  3. Step 3: Cross multiply
    102,813.56x = 154,220.33 × 57,837.90
  4. Step 4: Simplify right side
    102,813.56x = 8,919,779,735.32
  5. Step 5: Solve for x
    x = 8,919,779,735.32/102,813.56
  6. Step 6: Final answer
    x = 86,756.85

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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.