Home / 143,343.74-215,023.82-43,507.19

Finding the Fourth Proportional to 143,343.74, 215,023.82 and 43,507.19

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Solution

The fourth proportional to 143,343.74, 215,023.82 and 43,507.19 is: 65,263.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,343.74 : 215,023.82 = 43,507.19 : x
  2. Step 2: Convert to fraction form
    143,343.74/215,023.82 = 43,507.19/x
  3. Step 3: Cross multiply
    143,343.74x = 215,023.82 × 43,507.19
  4. Step 4: Simplify right side
    143,343.74x = 9,355,083,077.61
  5. Step 5: Solve for x
    x = 9,355,083,077.61/143,343.74
  6. Step 6: Final answer
    x = 65,263.28

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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.