Home / 139,528.16-208,959.63-76,253.39

Finding the Fourth Proportional to 139,528.16, 208,959.63 and 76,253.39

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Solution

The fourth proportional to 139,528.16, 208,959.63 and 76,253.39 is: 114,198.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,528.16 : 208,959.63 = 76,253.39 : x
  2. Step 2: Convert to fraction form
    139,528.16/208,959.63 = 76,253.39/x
  3. Step 3: Cross multiply
    139,528.16x = 208,959.63 × 76,253.39
  4. Step 4: Simplify right side
    139,528.16x = 15,933,880,160.65
  5. Step 5: Solve for x
    x = 15,933,880,160.65/139,528.16
  6. Step 6: Final answer
    x = 114,198.31

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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.