Home / 139,186.04-208,735.38-45,669.88

Finding the Fourth Proportional to 139,186.04, 208,735.38 and 45,669.88

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Solution

The fourth proportional to 139,186.04, 208,735.38 and 45,669.88 is: 68,490.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,186.04 : 208,735.38 = 45,669.88 : x
  2. Step 2: Convert to fraction form
    139,186.04/208,735.38 = 45,669.88/x
  3. Step 3: Cross multiply
    139,186.04x = 208,735.38 × 45,669.88
  4. Step 4: Simplify right side
    139,186.04x = 9,532,919,756.35
  5. Step 5: Solve for x
    x = 9,532,919,756.35/139,186.04
  6. Step 6: Final answer
    x = 68,490.49

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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.