Home / 143,539.07-215,354.70-43,718.58

Finding the Fourth Proportional to 143,539.07, 215,354.70 and 43,718.58

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Solution

The fourth proportional to 143,539.07, 215,354.70 and 43,718.58 is: 65,591.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,539.07 : 215,354.70 = 43,718.58 : x
  2. Step 2: Convert to fraction form
    143,539.07/215,354.70 = 43,718.58/x
  3. Step 3: Cross multiply
    143,539.07x = 215,354.70 × 43,718.58
  4. Step 4: Simplify right side
    143,539.07x = 9,415,001,680.33
  5. Step 5: Solve for x
    x = 9,415,001,680.33/143,539.07
  6. Step 6: Final answer
    x = 65,591.91

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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.