Home / 131,690.12-197,566.65-42,943.73

Finding the Fourth Proportional to 131,690.12, 197,566.65 and 42,943.73

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Solution

The fourth proportional to 131,690.12, 197,566.65 and 42,943.73 is: 64,425.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,690.12 : 197,566.65 = 42,943.73 : x
  2. Step 2: Convert to fraction form
    131,690.12/197,566.65 = 42,943.73/x
  3. Step 3: Cross multiply
    131,690.12x = 197,566.65 × 42,943.73
  4. Step 4: Simplify right side
    131,690.12x = 8,484,247,886.77
  5. Step 5: Solve for x
    x = 8,484,247,886.77/131,690.12
  6. Step 6: Final answer
    x = 64,425.85

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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.