Home / 115,001.20-172,450.60-52,690.80

Finding the Fourth Proportional to 115,001.20, 172,450.60 and 52,690.80

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Solution

The fourth proportional to 115,001.20, 172,450.60 and 52,690.80 is: 79,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,001.20 : 172,450.60 = 52,690.80 : x
  2. Step 2: Convert to fraction form
    115,001.20/172,450.60 = 52,690.80/x
  3. Step 3: Cross multiply
    115,001.20x = 172,450.60 × 52,690.80
  4. Step 4: Simplify right side
    115,001.20x = 9,086,560,074.48
  5. Step 5: Solve for x
    x = 9,086,560,074.48/115,001.20
  6. Step 6: Final answer
    x = 79,012.74

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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.