Home / 135,087.08-202,688.94-72,745.16

Finding the Fourth Proportional to 135,087.08, 202,688.94 and 72,745.16

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Solution

The fourth proportional to 135,087.08, 202,688.94 and 72,745.16 is: 109,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,087.08 : 202,688.94 = 72,745.16 : x
  2. Step 2: Convert to fraction form
    135,087.08/202,688.94 = 72,745.16/x
  3. Step 3: Cross multiply
    135,087.08x = 202,688.94 × 72,745.16
  4. Step 4: Simplify right side
    135,087.08x = 14,744,639,370.53
  5. Step 5: Solve for x
    x = 14,744,639,370.53/135,087.08
  6. Step 6: Final answer
    x = 109,149.15

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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.