Home / 118,383.32-163,368-64,668.36

Finding the Fourth Proportional to 118,383.32, 163,368 and 64,668.36

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Solution

The fourth proportional to 118,383.32, 163,368 and 64,668.36 is: 89,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,383.32 : 163,368 = 64,668.36 : x
  2. Step 2: Convert to fraction form
    118,383.32/163,368 = 64,668.36/x
  3. Step 3: Cross multiply
    118,383.32x = 163,368 × 64,668.36
  4. Step 4: Simplify right side
    118,383.32x = 10,564,740,636.48
  5. Step 5: Solve for x
    x = 10,564,740,636.48/118,383.32
  6. Step 6: Final answer
    x = 89,241.80

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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.