Home / 161,929.72-223,464.02-90,314.28

Finding the Fourth Proportional to 161,929.72, 223,464.02 and 90,314.28

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Solution

The fourth proportional to 161,929.72, 223,464.02 and 90,314.28 is: 124,634.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,929.72 : 223,464.02 = 90,314.28 : x
  2. Step 2: Convert to fraction form
    161,929.72/223,464.02 = 90,314.28/x
  3. Step 3: Cross multiply
    161,929.72x = 223,464.02 × 90,314.28
  4. Step 4: Simplify right side
    161,929.72x = 20,181,992,072.21
  5. Step 5: Solve for x
    x = 20,181,992,072.21/161,929.72
  6. Step 6: Final answer
    x = 124,634.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.