Home / 109,659.07-151,328.19-61,914.43

Finding the Fourth Proportional to 109,659.07, 151,328.19 and 61,914.43

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Solution

The fourth proportional to 109,659.07, 151,328.19 and 61,914.43 is: 85,441.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,659.07 : 151,328.19 = 61,914.43 : x
  2. Step 2: Convert to fraction form
    109,659.07/151,328.19 = 61,914.43/x
  3. Step 3: Cross multiply
    109,659.07x = 151,328.19 × 61,914.43
  4. Step 4: Simplify right side
    109,659.07x = 9,369,398,626.78
  5. Step 5: Solve for x
    x = 9,369,398,626.78/109,659.07
  6. Step 6: Final answer
    x = 85,441.16

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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.