Home / 89,723.60-134,439.60-84,474.80

Finding the Fourth Proportional to 89,723.60, 134,439.60 and 84,474.80

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Solution

The fourth proportional to 89,723.60, 134,439.60 and 84,474.80 is: 126,574.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,723.60 : 134,439.60 = 84,474.80 : x
  2. Step 2: Convert to fraction form
    89,723.60/134,439.60 = 84,474.80/x
  3. Step 3: Cross multiply
    89,723.60x = 134,439.60 × 84,474.80
  4. Step 4: Simplify right side
    89,723.60x = 11,356,758,322.08
  5. Step 5: Solve for x
    x = 11,356,758,322.08/89,723.60
  6. Step 6: Final answer
    x = 126,574.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.