Home / 130,617.96-180,044.28-102,977.40

Finding the Fourth Proportional to 130,617.96, 180,044.28 and 102,977.40

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Solution

The fourth proportional to 130,617.96, 180,044.28 and 102,977.40 is: 141,944.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,617.96 : 180,044.28 = 102,977.40 : x
  2. Step 2: Convert to fraction form
    130,617.96/180,044.28 = 102,977.40/x
  3. Step 3: Cross multiply
    130,617.96x = 180,044.28 × 102,977.40
  4. Step 4: Simplify right side
    130,617.96x = 18,540,491,839.27
  5. Step 5: Solve for x
    x = 18,540,491,839.27/130,617.96
  6. Step 6: Final answer
    x = 141,944.43

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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.