Home / 155,110.55-214,037.44-87,112.06

Finding the Fourth Proportional to 155,110.55, 214,037.44 and 87,112.06

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Solution

The fourth proportional to 155,110.55, 214,037.44 and 87,112.06 is: 120,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,110.55 : 214,037.44 = 87,112.06 : x
  2. Step 2: Convert to fraction form
    155,110.55/214,037.44 = 87,112.06/x
  3. Step 3: Cross multiply
    155,110.55x = 214,037.44 × 87,112.06
  4. Step 4: Simplify right side
    155,110.55x = 18,645,241,562.65
  5. Step 5: Solve for x
    x = 18,645,241,562.65/155,110.55
  6. Step 6: Final answer
    x = 120,206.15

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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.