Home / 145,537.32-218,370.78-143,175.36

Finding the Fourth Proportional to 145,537.32, 218,370.78 and 143,175.36

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Solution

The fourth proportional to 145,537.32, 218,370.78 and 143,175.36 is: 214,826.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,537.32 : 218,370.78 = 143,175.36 : x
  2. Step 2: Convert to fraction form
    145,537.32/218,370.78 = 143,175.36/x
  3. Step 3: Cross multiply
    145,537.32x = 218,370.78 × 143,175.36
  4. Step 4: Simplify right side
    145,537.32x = 31,265,315,039.98
  5. Step 5: Solve for x
    x = 31,265,315,039.98/145,537.32
  6. Step 6: Final answer
    x = 214,826.79

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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.