Home / 212,887.72-319,238.86-61,051.26

Finding the Fourth Proportional to 212,887.72, 319,238.86 and 61,051.26

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Solution

The fourth proportional to 212,887.72, 319,238.86 and 61,051.26 is: 91,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,887.72 : 319,238.86 = 61,051.26 : x
  2. Step 2: Convert to fraction form
    212,887.72/319,238.86 = 61,051.26/x
  3. Step 3: Cross multiply
    212,887.72x = 319,238.86 × 61,051.26
  4. Step 4: Simplify right side
    212,887.72x = 19,489,934,643.96
  5. Step 5: Solve for x
    x = 19,489,934,643.96/212,887.72
  6. Step 6: Final answer
    x = 91,550.30

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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.