Home / 139,764.30-209,646.45-134,321.10

Finding the Fourth Proportional to 139,764.30, 209,646.45 and 134,321.10

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Solution

The fourth proportional to 139,764.30, 209,646.45 and 134,321.10 is: 201,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,764.30 : 209,646.45 = 134,321.10 : x
  2. Step 2: Convert to fraction form
    139,764.30/209,646.45 = 134,321.10/x
  3. Step 3: Cross multiply
    139,764.30x = 209,646.45 × 134,321.10
  4. Step 4: Simplify right side
    139,764.30x = 28,159,941,775.10
  5. Step 5: Solve for x
    x = 28,159,941,775.10/139,764.30
  6. Step 6: Final answer
    x = 201,481.65

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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.