Home / 103,758.03-155,686.26-61,720.98

Finding the Fourth Proportional to 103,758.03, 155,686.26 and 61,720.98

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Solution

The fourth proportional to 103,758.03, 155,686.26 and 61,720.98 is: 92,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,758.03 : 155,686.26 = 61,720.98 : x
  2. Step 2: Convert to fraction form
    103,758.03/155,686.26 = 61,720.98/x
  3. Step 3: Cross multiply
    103,758.03x = 155,686.26 × 61,720.98
  4. Step 4: Simplify right side
    103,758.03x = 9,609,108,539.73
  5. Step 5: Solve for x
    x = 9,609,108,539.73/103,758.03
  6. Step 6: Final answer
    x = 92,610.75

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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.