Home / 155,305.35-214,344.07-87,327.92

Finding the Fourth Proportional to 155,305.35, 214,344.07 and 87,327.92

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Solution

The fourth proportional to 155,305.35, 214,344.07 and 87,327.92 is: 120,525.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,305.35 : 214,344.07 = 87,327.92 : x
  2. Step 2: Convert to fraction form
    155,305.35/214,344.07 = 87,327.92/x
  3. Step 3: Cross multiply
    155,305.35x = 214,344.07 × 87,327.92
  4. Step 4: Simplify right side
    155,305.35x = 18,718,222,606.19
  5. Step 5: Solve for x
    x = 18,718,222,606.19/155,305.35
  6. Step 6: Final answer
    x = 120,525.29

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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.