Home / 89,170.16-123,070.43-67,730.87

Finding the Fourth Proportional to 89,170.16, 123,070.43 and 67,730.87

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Solution

The fourth proportional to 89,170.16, 123,070.43 and 67,730.87 is: 93,480.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,170.16 : 123,070.43 = 67,730.87 : x
  2. Step 2: Convert to fraction form
    89,170.16/123,070.43 = 67,730.87/x
  3. Step 3: Cross multiply
    89,170.16x = 123,070.43 × 67,730.87
  4. Step 4: Simplify right side
    89,170.16x = 8,335,667,295.17
  5. Step 5: Solve for x
    x = 8,335,667,295.17/89,170.16
  6. Step 6: Final answer
    x = 93,480.46

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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.