Home / 130,883.42-180,614.20-79,981.27

Finding the Fourth Proportional to 130,883.42, 180,614.20 and 79,981.27

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Solution

The fourth proportional to 130,883.42, 180,614.20 and 79,981.27 is: 110,371.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,883.42 : 180,614.20 = 79,981.27 : x
  2. Step 2: Convert to fraction form
    130,883.42/180,614.20 = 79,981.27/x
  3. Step 3: Cross multiply
    130,883.42x = 180,614.20 × 79,981.27
  4. Step 4: Simplify right side
    130,883.42x = 14,445,753,096.03
  5. Step 5: Solve for x
    x = 14,445,753,096.03/130,883.42
  6. Step 6: Final answer
    x = 110,371.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.