Home / 89,938.08-135,060.21-86,176.44

Finding the Fourth Proportional to 89,938.08, 135,060.21 and 86,176.44

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Solution

The fourth proportional to 89,938.08, 135,060.21 and 86,176.44 is: 129,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,938.08 : 135,060.21 = 86,176.44 : x
  2. Step 2: Convert to fraction form
    89,938.08/135,060.21 = 86,176.44/x
  3. Step 3: Cross multiply
    89,938.08x = 135,060.21 × 86,176.44
  4. Step 4: Simplify right side
    89,938.08x = 11,639,008,083.45
  5. Step 5: Solve for x
    x = 11,639,008,083.45/89,938.08
  6. Step 6: Final answer
    x = 129,411.35

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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.