Home / 459,965.09-689,899.10-123,039.75

Finding the Fourth Proportional to 459,965.09, 689,899.10 and 123,039.75

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Solution

The fourth proportional to 459,965.09, 689,899.10 and 123,039.75 is: 184,546.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,965.09 : 689,899.10 = 123,039.75 : x
  2. Step 2: Convert to fraction form
    459,965.09/689,899.10 = 123,039.75/x
  3. Step 3: Cross multiply
    459,965.09x = 689,899.10 × 123,039.75
  4. Step 4: Simplify right side
    459,965.09x = 84,885,013,096.82
  5. Step 5: Solve for x
    x = 84,885,013,096.82/459,965.09
  6. Step 6: Final answer
    x = 184,546.64

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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.