Home / 90,586.35-135,900.99-89,080.16

Finding the Fourth Proportional to 90,586.35, 135,900.99 and 89,080.16

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Solution

The fourth proportional to 90,586.35, 135,900.99 and 89,080.16 is: 133,641.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,586.35 : 135,900.99 = 89,080.16 : x
  2. Step 2: Convert to fraction form
    90,586.35/135,900.99 = 89,080.16/x
  3. Step 3: Cross multiply
    90,586.35x = 135,900.99 × 89,080.16
  4. Step 4: Simplify right side
    90,586.35x = 12,106,081,253.85
  5. Step 5: Solve for x
    x = 12,106,081,253.85/90,586.35
  6. Step 6: Final answer
    x = 133,641.34

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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.