Home / 118,120.55-163,005.99-64,405.44

Finding the Fourth Proportional to 118,120.55, 163,005.99 and 64,405.44

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Solution

The fourth proportional to 118,120.55, 163,005.99 and 64,405.44 is: 88,879.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,120.55 : 163,005.99 = 64,405.44 : x
  2. Step 2: Convert to fraction form
    118,120.55/163,005.99 = 64,405.44/x
  3. Step 3: Cross multiply
    118,120.55x = 163,005.99 × 64,405.44
  4. Step 4: Simplify right side
    118,120.55x = 10,498,473,039.71
  5. Step 5: Solve for x
    x = 10,498,473,039.71/118,120.55
  6. Step 6: Final answer
    x = 88,879.31

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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.