Home / 109,659.06-151,333.65-61,917.66

Finding the Fourth Proportional to 109,659.06, 151,333.65 and 61,917.66

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Solution

The fourth proportional to 109,659.06, 151,333.65 and 61,917.66 is: 85,448.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,659.06 : 151,333.65 = 61,917.66 : x
  2. Step 2: Convert to fraction form
    109,659.06/151,333.65 = 61,917.66/x
  3. Step 3: Cross multiply
    109,659.06x = 151,333.65 × 61,917.66
  4. Step 4: Simplify right side
    109,659.06x = 9,370,225,487.26
  5. Step 5: Solve for x
    x = 9,370,225,487.26/109,659.06
  6. Step 6: Final answer
    x = 85,448.71

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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.