Home / 97,436.93-134,474.31-81,055.20

Finding the Fourth Proportional to 97,436.93, 134,474.31 and 81,055.20

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Solution

The fourth proportional to 97,436.93, 134,474.31 and 81,055.20 is: 111,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,436.93 : 134,474.31 = 81,055.20 : x
  2. Step 2: Convert to fraction form
    97,436.93/134,474.31 = 81,055.20/x
  3. Step 3: Cross multiply
    97,436.93x = 134,474.31 × 81,055.20
  4. Step 4: Simplify right side
    97,436.93x = 10,899,842,091.91
  5. Step 5: Solve for x
    x = 10,899,842,091.91/97,436.93
  6. Step 6: Final answer
    x = 111,865.61

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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.