Home / 115,312.20-172,968.30-70,794.60

Finding the Fourth Proportional to 115,312.20, 172,968.30 and 70,794.60

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Solution

The fourth proportional to 115,312.20, 172,968.30 and 70,794.60 is: 106,191.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,312.20 : 172,968.30 = 70,794.60 : x
  2. Step 2: Convert to fraction form
    115,312.20/172,968.30 = 70,794.60/x
  3. Step 3: Cross multiply
    115,312.20x = 172,968.30 × 70,794.60
  4. Step 4: Simplify right side
    115,312.20x = 12,245,221,611.18
  5. Step 5: Solve for x
    x = 12,245,221,611.18/115,312.20
  6. Step 6: Final answer
    x = 106,191.90

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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.