Home / 109,747.25-151,457.69-61,999.37

Finding the Fourth Proportional to 109,747.25, 151,457.69 and 61,999.37

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Solution

The fourth proportional to 109,747.25, 151,457.69 and 61,999.37 is: 85,562.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,747.25 : 151,457.69 = 61,999.37 : x
  2. Step 2: Convert to fraction form
    109,747.25/151,457.69 = 61,999.37/x
  3. Step 3: Cross multiply
    109,747.25x = 151,457.69 × 61,999.37
  4. Step 4: Simplify right side
    109,747.25x = 9,390,281,051.66
  5. Step 5: Solve for x
    x = 9,390,281,051.66/109,747.25
  6. Step 6: Final answer
    x = 85,562.79

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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.