Home / 155,652.09-214,797.60-87,669.20

Finding the Fourth Proportional to 155,652.09, 214,797.60 and 87,669.20

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Solution

The fourth proportional to 155,652.09, 214,797.60 and 87,669.20 is: 120,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,652.09 : 214,797.60 = 87,669.20 : x
  2. Step 2: Convert to fraction form
    155,652.09/214,797.60 = 87,669.20/x
  3. Step 3: Cross multiply
    155,652.09x = 214,797.60 × 87,669.20
  4. Step 4: Simplify right side
    155,652.09x = 18,831,132,679.93
  5. Step 5: Solve for x
    x = 18,831,132,679.93/155,652.09
  6. Step 6: Final answer
    x = 120,982.20

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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.