Home / 118,494.36-163,520.37-64,778.13

Finding the Fourth Proportional to 118,494.36, 163,520.37 and 64,778.13

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Solution

The fourth proportional to 118,494.36, 163,520.37 and 64,778.13 is: 89,392.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,494.36 : 163,520.37 = 64,778.13 : x
  2. Step 2: Convert to fraction form
    118,494.36/163,520.37 = 64,778.13/x
  3. Step 3: Cross multiply
    118,494.36x = 163,520.37 × 64,778.13
  4. Step 4: Simplify right side
    118,494.36x = 10,592,543,785.51
  5. Step 5: Solve for x
    x = 10,592,543,785.51/118,494.36
  6. Step 6: Final answer
    x = 89,392.81

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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.