Home / 165,690.28-248,303.75-89,624.62

Finding the Fourth Proportional to 165,690.28, 248,303.75 and 89,624.62

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Solution

The fourth proportional to 165,690.28, 248,303.75 and 89,624.62 is: 134,311.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,690.28 : 248,303.75 = 89,624.62 : x
  2. Step 2: Convert to fraction form
    165,690.28/248,303.75 = 89,624.62/x
  3. Step 3: Cross multiply
    165,690.28x = 248,303.75 × 89,624.62
  4. Step 4: Simplify right side
    165,690.28x = 22,254,129,158.44
  5. Step 5: Solve for x
    x = 22,254,129,158.44/165,690.28
  6. Step 6: Final answer
    x = 134,311.61

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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.