Home / 127,534.20-191,082.60-83,138.10

Finding the Fourth Proportional to 127,534.20, 191,082.60 and 83,138.10

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Solution

The fourth proportional to 127,534.20, 191,082.60 and 83,138.10 is: 124,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,534.20 : 191,082.60 = 83,138.10 : x
  2. Step 2: Convert to fraction form
    127,534.20/191,082.60 = 83,138.10/x
  3. Step 3: Cross multiply
    127,534.20x = 191,082.60 × 83,138.10
  4. Step 4: Simplify right side
    127,534.20x = 15,886,244,307.06
  5. Step 5: Solve for x
    x = 15,886,244,307.06/127,534.20
  6. Step 6: Final answer
    x = 124,564.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.