Home / 115,028.60-172,548.30-36,145.40

Finding the Fourth Proportional to 115,028.60, 172,548.30 and 36,145.40

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Solution

The fourth proportional to 115,028.60, 172,548.30 and 36,145.40 is: 54,219.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,028.60 : 172,548.30 = 36,145.40 : x
  2. Step 2: Convert to fraction form
    115,028.60/172,548.30 = 36,145.40/x
  3. Step 3: Cross multiply
    115,028.60x = 172,548.30 × 36,145.40
  4. Step 4: Simplify right side
    115,028.60x = 6,236,827,322.82
  5. Step 5: Solve for x
    x = 6,236,827,322.82/115,028.60
  6. Step 6: Final answer
    x = 54,219.80

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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.