Home / 131,865.06-197,830.40-38,370.81

Finding the Fourth Proportional to 131,865.06, 197,830.40 and 38,370.81

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Solution

The fourth proportional to 131,865.06, 197,830.40 and 38,370.81 is: 57,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,865.06 : 197,830.40 = 38,370.81 : x
  2. Step 2: Convert to fraction form
    131,865.06/197,830.40 = 38,370.81/x
  3. Step 3: Cross multiply
    131,865.06x = 197,830.40 × 38,370.81
  4. Step 4: Simplify right side
    131,865.06x = 7,590,912,690.62
  5. Step 5: Solve for x
    x = 7,590,912,690.62/131,865.06
  6. Step 6: Final answer
    x = 57,565.76

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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.