Home / 143,919.36-215,894.40-38,739.84

Finding the Fourth Proportional to 143,919.36, 215,894.40 and 38,739.84

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Solution

The fourth proportional to 143,919.36, 215,894.40 and 38,739.84 is: 58,113.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,919.36 : 215,894.40 = 38,739.84 : x
  2. Step 2: Convert to fraction form
    143,919.36/215,894.40 = 38,739.84/x
  3. Step 3: Cross multiply
    143,919.36x = 215,894.40 × 38,739.84
  4. Step 4: Simplify right side
    143,919.36x = 8,363,714,512.90
  5. Step 5: Solve for x
    x = 8,363,714,512.90/143,919.36
  6. Step 6: Final answer
    x = 58,113.89

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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.