Home / 103,630.35-155,560.73-64,231.95

Finding the Fourth Proportional to 103,630.35, 155,560.73 and 64,231.95

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Solution

The fourth proportional to 103,630.35, 155,560.73 and 64,231.95 is: 96,419.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.35 : 155,560.73 = 64,231.95 : x
  2. Step 2: Convert to fraction form
    103,630.35/155,560.73 = 64,231.95/x
  3. Step 3: Cross multiply
    103,630.35x = 155,560.73 × 64,231.95
  4. Step 4: Simplify right side
    103,630.35x = 9,991,968,710.16
  5. Step 5: Solve for x
    x = 9,991,968,710.16/103,630.35
  6. Step 6: Final answer
    x = 96,419.33

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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.