Home / 459,855.11-689,886.44-140,035.59

Finding the Fourth Proportional to 459,855.11, 689,886.44 and 140,035.59

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Solution

The fourth proportional to 459,855.11, 689,886.44 and 140,035.59 is: 210,084.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,855.11 : 689,886.44 = 140,035.59 : x
  2. Step 2: Convert to fraction form
    459,855.11/689,886.44 = 140,035.59/x
  3. Step 3: Cross multiply
    459,855.11x = 689,886.44 × 140,035.59
  4. Step 4: Simplify right side
    459,855.11x = 96,608,653,958.22
  5. Step 5: Solve for x
    x = 96,608,653,958.22/459,855.11
  6. Step 6: Final answer
    x = 210,084.99

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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.