Home / 423,832.90-635,699-139,452.93

Finding the Fourth Proportional to 423,832.90, 635,699 and 139,452.93

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Solution

The fourth proportional to 423,832.90, 635,699 and 139,452.93 is: 209,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,832.90 : 635,699 = 139,452.93 : x
  2. Step 2: Convert to fraction form
    423,832.90/635,699 = 139,452.93/x
  3. Step 3: Cross multiply
    423,832.90x = 635,699 × 139,452.93
  4. Step 4: Simplify right side
    423,832.90x = 88,650,088,148.07
  5. Step 5: Solve for x
    x = 88,650,088,148.07/423,832.90
  6. Step 6: Final answer
    x = 209,162.83

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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.