Home / 103,550.60-155,227.45-66,005.28

Finding the Fourth Proportional to 103,550.60, 155,227.45 and 66,005.28

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Solution

The fourth proportional to 103,550.60, 155,227.45 and 66,005.28 is: 98,945.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,550.60 : 155,227.45 = 66,005.28 : x
  2. Step 2: Convert to fraction form
    103,550.60/155,227.45 = 66,005.28/x
  3. Step 3: Cross multiply
    103,550.60x = 155,227.45 × 66,005.28
  4. Step 4: Simplify right side
    103,550.60x = 10,245,831,300.94
  5. Step 5: Solve for x
    x = 10,245,831,300.94/103,550.60
  6. Step 6: Final answer
    x = 98,945.17

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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.