Home / 118,390.77-163,377.21-64,674.39

Finding the Fourth Proportional to 118,390.77, 163,377.21 and 64,674.39

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Solution

The fourth proportional to 118,390.77, 163,377.21 and 64,674.39 is: 89,249.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,390.77 : 163,377.21 = 64,674.39 : x
  2. Step 2: Convert to fraction form
    118,390.77/163,377.21 = 64,674.39/x
  3. Step 3: Cross multiply
    118,390.77x = 163,377.21 × 64,674.39
  4. Step 4: Simplify right side
    118,390.77x = 10,566,321,396.65
  5. Step 5: Solve for x
    x = 10,566,321,396.65/118,390.77
  6. Step 6: Final answer
    x = 89,249.54

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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.