Home / 136,992.12-205,487.64-43,505.16

Finding the Fourth Proportional to 136,992.12, 205,487.64 and 43,505.16

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Solution

The fourth proportional to 136,992.12, 205,487.64 and 43,505.16 is: 65,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,992.12 : 205,487.64 = 43,505.16 : x
  2. Step 2: Convert to fraction form
    136,992.12/205,487.64 = 43,505.16/x
  3. Step 3: Cross multiply
    136,992.12x = 205,487.64 × 43,505.16
  4. Step 4: Simplify right side
    136,992.12x = 8,939,772,656.22
  5. Step 5: Solve for x
    x = 8,939,772,656.22/136,992.12
  6. Step 6: Final answer
    x = 65,257.57

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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.