Home / 90,832.20-136,272.60-64,588.20

Finding the Fourth Proportional to 90,832.20, 136,272.60 and 64,588.20

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Solution

The fourth proportional to 90,832.20, 136,272.60 and 64,588.20 is: 96,899.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,832.20 : 136,272.60 = 64,588.20 : x
  2. Step 2: Convert to fraction form
    90,832.20/136,272.60 = 64,588.20/x
  3. Step 3: Cross multiply
    90,832.20x = 136,272.60 × 64,588.20
  4. Step 4: Simplify right side
    90,832.20x = 8,801,601,943.32
  5. Step 5: Solve for x
    x = 8,801,601,943.32/90,832.20
  6. Step 6: Final answer
    x = 96,899.58

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1.5x scale

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.