Home / 108,359.11-149,546.84-62,420.34

Finding the Fourth Proportional to 108,359.11, 149,546.84 and 62,420.34

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Solution

The fourth proportional to 108,359.11, 149,546.84 and 62,420.34 is: 86,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,359.11 : 149,546.84 = 62,420.34 : x
  2. Step 2: Convert to fraction form
    108,359.11/149,546.84 = 62,420.34/x
  3. Step 3: Cross multiply
    108,359.11x = 149,546.84 × 62,420.34
  4. Step 4: Simplify right side
    108,359.11x = 9,334,763,538.89
  5. Step 5: Solve for x
    x = 9,334,763,538.89/108,359.11
  6. Step 6: Final answer
    x = 86,146.55

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1.5x scale

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.