Home / 133,077.80-183,603.41-87,778.35

Finding the Fourth Proportional to 133,077.80, 183,603.41 and 87,778.35

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Solution

The fourth proportional to 133,077.80, 183,603.41 and 87,778.35 is: 121,105.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,077.80 : 183,603.41 = 87,778.35 : x
  2. Step 2: Convert to fraction form
    133,077.80/183,603.41 = 87,778.35/x
  3. Step 3: Cross multiply
    133,077.80x = 183,603.41 × 87,778.35
  4. Step 4: Simplify right side
    133,077.80x = 16,116,404,274.45
  5. Step 5: Solve for x
    x = 16,116,404,274.45/133,077.80
  6. Step 6: Final answer
    x = 121,105.13

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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.