Home / 139,908.60-193,068.24-76,245.02

Finding the Fourth Proportional to 139,908.60, 193,068.24 and 76,245.02

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Solution

The fourth proportional to 139,908.60, 193,068.24 and 76,245.02 is: 105,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,908.60 : 193,068.24 = 76,245.02 : x
  2. Step 2: Convert to fraction form
    139,908.60/193,068.24 = 76,245.02/x
  3. Step 3: Cross multiply
    139,908.60x = 193,068.24 × 76,245.02
  4. Step 4: Simplify right side
    139,908.60x = 14,720,491,820.16
  5. Step 5: Solve for x
    x = 14,720,491,820.16/139,908.60
  6. Step 6: Final answer
    x = 105,215.06

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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.