Home / 115,207.40-172,811.10-67,968.20

Finding the Fourth Proportional to 115,207.40, 172,811.10 and 67,968.20

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Solution

The fourth proportional to 115,207.40, 172,811.10 and 67,968.20 is: 101,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,207.40 : 172,811.10 = 67,968.20 : x
  2. Step 2: Convert to fraction form
    115,207.40/172,811.10 = 67,968.20/x
  3. Step 3: Cross multiply
    115,207.40x = 172,811.10 × 67,968.20
  4. Step 4: Simplify right side
    115,207.40x = 11,745,659,407.02
  5. Step 5: Solve for x
    x = 11,745,659,407.02/115,207.40
  6. Step 6: Final answer
    x = 101,952.30

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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.