Home / 103,605.48-155,291.58-51,051.87

Finding the Fourth Proportional to 103,605.48, 155,291.58 and 51,051.87

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Solution

The fourth proportional to 103,605.48, 155,291.58 and 51,051.87 is: 76,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,605.48 : 155,291.58 = 51,051.87 : x
  2. Step 2: Convert to fraction form
    103,605.48/155,291.58 = 51,051.87/x
  3. Step 3: Cross multiply
    103,605.48x = 155,291.58 × 51,051.87
  4. Step 4: Simplify right side
    103,605.48x = 7,927,925,554.25
  5. Step 5: Solve for x
    x = 7,927,925,554.25/103,605.48
  6. Step 6: Final answer
    x = 76,520.33

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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.