Home / 142,808.30-214,212.45-119,998.70

Finding the Fourth Proportional to 142,808.30, 214,212.45 and 119,998.70

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Solution

The fourth proportional to 142,808.30, 214,212.45 and 119,998.70 is: 179,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,808.30 : 214,212.45 = 119,998.70 : x
  2. Step 2: Convert to fraction form
    142,808.30/214,212.45 = 119,998.70/x
  3. Step 3: Cross multiply
    142,808.30x = 214,212.45 × 119,998.70
  4. Step 4: Simplify right side
    142,808.30x = 25,705,215,523.82
  5. Step 5: Solve for x
    x = 25,705,215,523.82/142,808.30
  6. Step 6: Final answer
    x = 179,998.05

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1.5x scale

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.