Home / 136,812.47-205,250.31-43,318.22

Finding the Fourth Proportional to 136,812.47, 205,250.31 and 43,318.22

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Solution

The fourth proportional to 136,812.47, 205,250.31 and 43,318.22 is: 64,987.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,812.47 : 205,250.31 = 43,318.22 : x
  2. Step 2: Convert to fraction form
    136,812.47/205,250.31 = 43,318.22/x
  3. Step 3: Cross multiply
    136,812.47x = 205,250.31 × 43,318.22
  4. Step 4: Simplify right side
    136,812.47x = 8,891,077,057.40
  5. Step 5: Solve for x
    x = 8,891,077,057.40/136,812.47
  6. Step 6: Final answer
    x = 64,987.33

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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.