Home / 131,393.20-197,118.62-42,655.64

Finding the Fourth Proportional to 131,393.20, 197,118.62 and 42,655.64

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Solution

The fourth proportional to 131,393.20, 197,118.62 and 42,655.64 is: 63,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,393.20 : 197,118.62 = 42,655.64 : x
  2. Step 2: Convert to fraction form
    131,393.20/197,118.62 = 42,655.64/x
  3. Step 3: Cross multiply
    131,393.20x = 197,118.62 × 42,655.64
  4. Step 4: Simplify right side
    131,393.20x = 8,408,220,892.02
  5. Step 5: Solve for x
    x = 8,408,220,892.02/131,393.20
  6. Step 6: Final answer
    x = 63,992.82

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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.