Home / 139,126.45-208,374.35-108,952.65

Finding the Fourth Proportional to 139,126.45, 208,374.35 and 108,952.65

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Solution

The fourth proportional to 139,126.45, 208,374.35 and 108,952.65 is: 163,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,126.45 : 208,374.35 = 108,952.65 : x
  2. Step 2: Convert to fraction form
    139,126.45/208,374.35 = 108,952.65/x
  3. Step 3: Cross multiply
    139,126.45x = 208,374.35 × 108,952.65
  4. Step 4: Simplify right side
    139,126.45x = 22,702,936,465.10
  5. Step 5: Solve for x
    x = 22,702,936,465.10/139,126.45
  6. Step 6: Final answer
    x = 163,182.03

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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.