Home / 131,780.18-197,528.46-56,935.76

Finding the Fourth Proportional to 131,780.18, 197,528.46 and 56,935.76

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Solution

The fourth proportional to 131,780.18, 197,528.46 and 56,935.76 is: 85,342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,780.18 : 197,528.46 = 56,935.76 : x
  2. Step 2: Convert to fraction form
    131,780.18/197,528.46 = 56,935.76/x
  3. Step 3: Cross multiply
    131,780.18x = 197,528.46 × 56,935.76
  4. Step 4: Simplify right side
    131,780.18x = 11,246,432,991.73
  5. Step 5: Solve for x
    x = 11,246,432,991.73/131,780.18
  6. Step 6: Final answer
    x = 85,342.37

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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.