Home / 90,195.83-135,253.76-48,068.06

Finding the Fourth Proportional to 90,195.83, 135,253.76 and 48,068.06

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Solution

The fourth proportional to 90,195.83, 135,253.76 and 48,068.06 is: 72,080.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,195.83 : 135,253.76 = 48,068.06 : x
  2. Step 2: Convert to fraction form
    90,195.83/135,253.76 = 48,068.06/x
  3. Step 3: Cross multiply
    90,195.83x = 135,253.76 × 48,068.06
  4. Step 4: Simplify right side
    90,195.83x = 6,501,385,978.74
  5. Step 5: Solve for x
    x = 6,501,385,978.74/90,195.83
  6. Step 6: Final answer
    x = 72,080.78

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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.