Home / 119,903.20-179,714.72-90,225.68

Finding the Fourth Proportional to 119,903.20, 179,714.72 and 90,225.68

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Solution

The fourth proportional to 119,903.20, 179,714.72 and 90,225.68 is: 135,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,903.20 : 179,714.72 = 90,225.68 : x
  2. Step 2: Convert to fraction form
    119,903.20/179,714.72 = 90,225.68/x
  3. Step 3: Cross multiply
    119,903.20x = 179,714.72 × 90,225.68
  4. Step 4: Simplify right side
    119,903.20x = 16,214,882,818.01
  5. Step 5: Solve for x
    x = 16,214,882,818.01/119,903.20
  6. Step 6: Final answer
    x = 135,233.11

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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.