Home / 109,465.44-151,062.52-61,718.68

Finding the Fourth Proportional to 109,465.44, 151,062.52 and 61,718.68

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Solution

The fourth proportional to 109,465.44, 151,062.52 and 61,718.68 is: 85,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,465.44 : 151,062.52 = 61,718.68 : x
  2. Step 2: Convert to fraction form
    109,465.44/151,062.52 = 61,718.68/x
  3. Step 3: Cross multiply
    109,465.44x = 151,062.52 × 61,718.68
  4. Step 4: Simplify right side
    109,465.44x = 9,323,379,331.87
  5. Step 5: Solve for x
    x = 9,323,379,331.87/109,465.44
  6. Step 6: Final answer
    x = 85,171.90

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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.