Home / 89,620.08-134,430.12-83,714.64

Finding the Fourth Proportional to 89,620.08, 134,430.12 and 83,714.64

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Solution

The fourth proportional to 89,620.08, 134,430.12 and 83,714.64 is: 125,571.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,620.08 : 134,430.12 = 83,714.64 : x
  2. Step 2: Convert to fraction form
    89,620.08/134,430.12 = 83,714.64/x
  3. Step 3: Cross multiply
    89,620.08x = 134,430.12 × 83,714.64
  4. Step 4: Simplify right side
    89,620.08x = 11,253,769,100.96
  5. Step 5: Solve for x
    x = 11,253,769,100.96/89,620.08
  6. Step 6: Final answer
    x = 125,571.96

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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.