Home / 89,790.26-134,685.38-85,300.46

Finding the Fourth Proportional to 89,790.26, 134,685.38 and 85,300.46

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Solution

The fourth proportional to 89,790.26, 134,685.38 and 85,300.46 is: 127,950.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,790.26 : 134,685.38 = 85,300.46 : x
  2. Step 2: Convert to fraction form
    89,790.26/134,685.38 = 85,300.46/x
  3. Step 3: Cross multiply
    89,790.26x = 134,685.38 × 85,300.46
  4. Step 4: Simplify right side
    89,790.26x = 11,488,724,869.27
  5. Step 5: Solve for x
    x = 11,488,724,869.27/89,790.26
  6. Step 6: Final answer
    x = 127,950.68

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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.