Home / 143,256.28-214,886.40-38,074.72

Finding the Fourth Proportional to 143,256.28, 214,886.40 and 38,074.72

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Solution

The fourth proportional to 143,256.28, 214,886.40 and 38,074.72 is: 57,112.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,256.28 : 214,886.40 = 38,074.72 : x
  2. Step 2: Convert to fraction form
    143,256.28/214,886.40 = 38,074.72/x
  3. Step 3: Cross multiply
    143,256.28x = 214,886.40 × 38,074.72
  4. Step 4: Simplify right side
    143,256.28x = 8,181,739,511.81
  5. Step 5: Solve for x
    x = 8,181,739,511.81/143,256.28
  6. Step 6: Final answer
    x = 57,112.61

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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.