Home / 118,369.16-163,408.36-73,072.11

Finding the Fourth Proportional to 118,369.16, 163,408.36 and 73,072.11

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Solution

The fourth proportional to 118,369.16, 163,408.36 and 73,072.11 is: 100,875.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,369.16 : 163,408.36 = 73,072.11 : x
  2. Step 2: Convert to fraction form
    118,369.16/163,408.36 = 73,072.11/x
  3. Step 3: Cross multiply
    118,369.16x = 163,408.36 × 73,072.11
  4. Step 4: Simplify right side
    118,369.16x = 11,940,593,291.48
  5. Step 5: Solve for x
    x = 11,940,593,291.48/118,369.16
  6. Step 6: Final answer
    x = 100,875.88

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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.