Home / 123,935.20-171,030.26-67,346.57

Finding the Fourth Proportional to 123,935.20, 171,030.26 and 67,346.57

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Solution

The fourth proportional to 123,935.20, 171,030.26 and 67,346.57 is: 92,938.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,935.20 : 171,030.26 = 67,346.57 : x
  2. Step 2: Convert to fraction form
    123,935.20/171,030.26 = 67,346.57/x
  3. Step 3: Cross multiply
    123,935.20x = 171,030.26 × 67,346.57
  4. Step 4: Simplify right side
    123,935.20x = 11,518,301,040.48
  5. Step 5: Solve for x
    x = 11,518,301,040.48/123,935.20
  6. Step 6: Final answer
    x = 92,938.10

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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.