Home / 118,391.20-163,382.26-64,679.70

Finding the Fourth Proportional to 118,391.20, 163,382.26 and 64,679.70

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Solution

The fourth proportional to 118,391.20, 163,382.26 and 64,679.70 is: 89,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,391.20 : 163,382.26 = 64,679.70 : x
  2. Step 2: Convert to fraction form
    118,391.20/163,382.26 = 64,679.70/x
  3. Step 3: Cross multiply
    118,391.20x = 163,382.26 × 64,679.70
  4. Step 4: Simplify right side
    118,391.20x = 10,567,515,562.12
  5. Step 5: Solve for x
    x = 10,567,515,562.12/118,391.20
  6. Step 6: Final answer
    x = 89,259.30

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1.5x scale

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.