Home / 90,847.45-136,293.89-89,340.61

Finding the Fourth Proportional to 90,847.45, 136,293.89 and 89,340.61

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Solution

The fourth proportional to 90,847.45, 136,293.89 and 89,340.61 is: 134,033.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,847.45 : 136,293.89 = 89,340.61 : x
  2. Step 2: Convert to fraction form
    90,847.45/136,293.89 = 89,340.61/x
  3. Step 3: Cross multiply
    90,847.45x = 136,293.89 × 89,340.61
  4. Step 4: Simplify right side
    90,847.45x = 12,176,579,271.87
  5. Step 5: Solve for x
    x = 12,176,579,271.87/90,847.45
  6. Step 6: Final answer
    x = 134,033.25

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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.