Home / 423,162.08-634,802.32-123,664.56

Finding the Fourth Proportional to 423,162.08, 634,802.32 and 123,664.56

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Solution

The fourth proportional to 423,162.08, 634,802.32 and 123,664.56 is: 185,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,162.08 : 634,802.32 = 123,664.56 : x
  2. Step 2: Convert to fraction form
    423,162.08/634,802.32 = 123,664.56/x
  3. Step 3: Cross multiply
    423,162.08x = 634,802.32 × 123,664.56
  4. Step 4: Simplify right side
    423,162.08x = 78,502,549,589.78
  5. Step 5: Solve for x
    x = 78,502,549,589.78/423,162.08
  6. Step 6: Final answer
    x = 185,514.14

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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.