Home / 140,219.92-209,994.67-80,875.68

Finding the Fourth Proportional to 140,219.92, 209,994.67 and 80,875.68

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Solution

The fourth proportional to 140,219.92, 209,994.67 and 80,875.68 is: 121,120.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,219.92 : 209,994.67 = 80,875.68 : x
  2. Step 2: Convert to fraction form
    140,219.92/209,994.67 = 80,875.68/x
  3. Step 3: Cross multiply
    140,219.92x = 209,994.67 × 80,875.68
  4. Step 4: Simplify right side
    140,219.92x = 16,983,461,732.63
  5. Step 5: Solve for x
    x = 16,983,461,732.63/140,219.92
  6. Step 6: Final answer
    x = 121,120.18

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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.