Home / 140,128.46-210,275.76-131,262.40

Finding the Fourth Proportional to 140,128.46, 210,275.76 and 131,262.40

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Solution

The fourth proportional to 140,128.46, 210,275.76 and 131,262.40 is: 196,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,128.46 : 210,275.76 = 131,262.40 : x
  2. Step 2: Convert to fraction form
    140,128.46/210,275.76 = 131,262.40/x
  3. Step 3: Cross multiply
    140,128.46x = 210,275.76 × 131,262.40
  4. Step 4: Simplify right side
    140,128.46x = 27,601,300,919.42
  5. Step 5: Solve for x
    x = 27,601,300,919.42/140,128.46
  6. Step 6: Final answer
    x = 196,971.41

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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.