Home / 118,758.20-163,886.83-64,311.08

Finding the Fourth Proportional to 118,758.20, 163,886.83 and 64,311.08

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Solution

The fourth proportional to 118,758.20, 163,886.83 and 64,311.08 is: 88,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,758.20 : 163,886.83 = 64,311.08 : x
  2. Step 2: Convert to fraction form
    118,758.20/163,886.83 = 64,311.08/x
  3. Step 3: Cross multiply
    118,758.20x = 163,886.83 × 64,311.08
  4. Step 4: Simplify right side
    118,758.20x = 10,539,738,054.86
  5. Step 5: Solve for x
    x = 10,539,738,054.86/118,758.20
  6. Step 6: Final answer
    x = 88,749.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.