Home / 131,418.09-197,143.53-51,445.73

Finding the Fourth Proportional to 131,418.09, 197,143.53 and 51,445.73

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Solution

The fourth proportional to 131,418.09, 197,143.53 and 51,445.73 is: 77,175.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,418.09 : 197,143.53 = 51,445.73 : x
  2. Step 2: Convert to fraction form
    131,418.09/197,143.53 = 51,445.73/x
  3. Step 3: Cross multiply
    131,418.09x = 197,143.53 × 51,445.73
  4. Step 4: Simplify right side
    131,418.09x = 10,142,191,829.91
  5. Step 5: Solve for x
    x = 10,142,191,829.91/131,418.09
  6. Step 6: Final answer
    x = 77,175.01

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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.