Home / 407,742.57-611,634.98-104,139.59

Finding the Fourth Proportional to 407,742.57, 611,634.98 and 104,139.59

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Solution

The fourth proportional to 407,742.57, 611,634.98 and 104,139.59 is: 156,214.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,742.57 : 611,634.98 = 104,139.59 : x
  2. Step 2: Convert to fraction form
    407,742.57/611,634.98 = 104,139.59/x
  3. Step 3: Cross multiply
    407,742.57x = 611,634.98 × 104,139.59
  4. Step 4: Simplify right side
    407,742.57x = 63,695,413,249.03
  5. Step 5: Solve for x
    x = 63,695,413,249.03/407,742.57
  6. Step 6: Final answer
    x = 156,214.77

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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.