Home / 136,935.55-189,023.81-122,570.04

Finding the Fourth Proportional to 136,935.55, 189,023.81 and 122,570.04

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Solution

The fourth proportional to 136,935.55, 189,023.81 and 122,570.04 is: 169,193.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,935.55 : 189,023.81 = 122,570.04 : x
  2. Step 2: Convert to fraction form
    136,935.55/189,023.81 = 122,570.04/x
  3. Step 3: Cross multiply
    136,935.55x = 189,023.81 × 122,570.04
  4. Step 4: Simplify right side
    136,935.55x = 23,168,656,048.64
  5. Step 5: Solve for x
    x = 23,168,656,048.64/136,935.55
  6. Step 6: Final answer
    x = 169,193.87

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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.