Home / 103,640.33-155,451.54-63,103.32

Finding the Fourth Proportional to 103,640.33, 155,451.54 and 63,103.32

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Solution

The fourth proportional to 103,640.33, 155,451.54 and 63,103.32 is: 94,649.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,640.33 : 155,451.54 = 63,103.32 : x
  2. Step 2: Convert to fraction form
    103,640.33/155,451.54 = 63,103.32/x
  3. Step 3: Cross multiply
    103,640.33x = 155,451.54 × 63,103.32
  4. Step 4: Simplify right side
    103,640.33x = 9,809,508,509.75
  5. Step 5: Solve for x
    x = 9,809,508,509.75/103,640.33
  6. Step 6: Final answer
    x = 94,649.53

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1.5x scale

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.