Home / 103,611.30-155,438.55-59,201.70

Finding the Fourth Proportional to 103,611.30, 155,438.55 and 59,201.70

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Solution

The fourth proportional to 103,611.30, 155,438.55 and 59,201.70 is: 88,814.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,611.30 : 155,438.55 = 59,201.70 : x
  2. Step 2: Convert to fraction form
    103,611.30/155,438.55 = 59,201.70/x
  3. Step 3: Cross multiply
    103,611.30x = 155,438.55 × 59,201.70
  4. Step 4: Simplify right side
    103,611.30x = 9,202,226,405.54
  5. Step 5: Solve for x
    x = 9,202,226,405.54/103,611.30
  6. Step 6: Final answer
    x = 88,814.89

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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.