Home / 133,259.35-183,880.13-85,577.28

Finding the Fourth Proportional to 133,259.35, 183,880.13 and 85,577.28

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Solution

The fourth proportional to 133,259.35, 183,880.13 and 85,577.28 is: 118,085.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,259.35 : 183,880.13 = 85,577.28 : x
  2. Step 2: Convert to fraction form
    133,259.35/183,880.13 = 85,577.28/x
  3. Step 3: Cross multiply
    133,259.35x = 183,880.13 × 85,577.28
  4. Step 4: Simplify right side
    133,259.35x = 15,735,961,371.45
  5. Step 5: Solve for x
    x = 15,735,961,371.45/133,259.35
  6. Step 6: Final answer
    x = 118,085.23

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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.