Home / 109,734.48-151,424.64-61,992

Finding the Fourth Proportional to 109,734.48, 151,424.64 and 61,992

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Solution

The fourth proportional to 109,734.48, 151,424.64 and 61,992 is: 85,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,734.48 : 151,424.64 = 61,992 : x
  2. Step 2: Convert to fraction form
    109,734.48/151,424.64 = 61,992/x
  3. Step 3: Cross multiply
    109,734.48x = 151,424.64 × 61,992
  4. Step 4: Simplify right side
    109,734.48x = 9,387,116,282.88
  5. Step 5: Solve for x
    x = 9,387,116,282.88/109,734.48
  6. Step 6: Final answer
    x = 85,543.91

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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.