Home / 137,255.16-189,396.12-76,829.16

Finding the Fourth Proportional to 137,255.16, 189,396.12 and 76,829.16

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Solution

The fourth proportional to 137,255.16, 189,396.12 and 76,829.16 is: 106,015.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,255.16 : 189,396.12 = 76,829.16 : x
  2. Step 2: Convert to fraction form
    137,255.16/189,396.12 = 76,829.16/x
  3. Step 3: Cross multiply
    137,255.16x = 189,396.12 × 76,829.16
  4. Step 4: Simplify right side
    137,255.16x = 14,551,144,806.86
  5. Step 5: Solve for x
    x = 14,551,144,806.86/137,255.16
  6. Step 6: Final answer
    x = 106,015.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.