Home / 139,117.96-208,735.26-45,633.16

Finding the Fourth Proportional to 139,117.96, 208,735.26 and 45,633.16

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Solution

The fourth proportional to 139,117.96, 208,735.26 and 45,633.16 is: 68,468.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,117.96 : 208,735.26 = 45,633.16 : x
  2. Step 2: Convert to fraction form
    139,117.96/208,735.26 = 45,633.16/x
  3. Step 3: Cross multiply
    139,117.96x = 208,735.26 × 45,633.16
  4. Step 4: Simplify right side
    139,117.96x = 9,525,249,517.22
  5. Step 5: Solve for x
    x = 9,525,249,517.22/139,117.96
  6. Step 6: Final answer
    x = 68,468.87

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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.