Home / 115,090.40-172,635.60-36,228.80

Finding the Fourth Proportional to 115,090.40, 172,635.60 and 36,228.80

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Solution

The fourth proportional to 115,090.40, 172,635.60 and 36,228.80 is: 54,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,090.40 : 172,635.60 = 36,228.80 : x
  2. Step 2: Convert to fraction form
    115,090.40/172,635.60 = 36,228.80/x
  3. Step 3: Cross multiply
    115,090.40x = 172,635.60 × 36,228.80
  4. Step 4: Simplify right side
    115,090.40x = 6,254,380,625.28
  5. Step 5: Solve for x
    x = 6,254,380,625.28/115,090.40
  6. Step 6: Final answer
    x = 54,343.20

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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.