Home / 143,260.39-214,890.35-38,079.36

Finding the Fourth Proportional to 143,260.39, 214,890.35 and 38,079.36

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Solution

The fourth proportional to 143,260.39, 214,890.35 and 38,079.36 is: 57,118.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,260.39 : 214,890.35 = 38,079.36 : x
  2. Step 2: Convert to fraction form
    143,260.39/214,890.35 = 38,079.36/x
  3. Step 3: Cross multiply
    143,260.39x = 214,890.35 × 38,079.36
  4. Step 4: Simplify right side
    143,260.39x = 8,182,886,998.18
  5. Step 5: Solve for x
    x = 8,182,886,998.18/143,260.39
  6. Step 6: Final answer
    x = 57,118.98

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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.