Home / 155,171.36-214,136.73-88,103.36

Finding the Fourth Proportional to 155,171.36, 214,136.73 and 88,103.36

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Solution

The fourth proportional to 155,171.36, 214,136.73 and 88,103.36 is: 121,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,171.36 : 214,136.73 = 88,103.36 : x
  2. Step 2: Convert to fraction form
    155,171.36/214,136.73 = 88,103.36/x
  3. Step 3: Cross multiply
    155,171.36x = 214,136.73 × 88,103.36
  4. Step 4: Simplify right side
    155,171.36x = 18,866,165,412.41
  5. Step 5: Solve for x
    x = 18,866,165,412.41/155,171.36
  6. Step 6: Final answer
    x = 121,582.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.