Home / 131,404.39-197,137.55-42,651.07

Finding the Fourth Proportional to 131,404.39, 197,137.55 and 42,651.07

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Solution

The fourth proportional to 131,404.39, 197,137.55 and 42,651.07 is: 63,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,404.39 : 197,137.55 = 42,651.07 : x
  2. Step 2: Convert to fraction form
    131,404.39/197,137.55 = 42,651.07/x
  3. Step 3: Cross multiply
    131,404.39x = 197,137.55 × 42,651.07
  4. Step 4: Simplify right side
    131,404.39x = 8,408,127,444.68
  5. Step 5: Solve for x
    x = 8,408,127,444.68/131,404.39
  6. Step 6: Final answer
    x = 63,986.66

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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.