Home / 108,435.18-149,656.32-62,485.92

Finding the Fourth Proportional to 108,435.18, 149,656.32 and 62,485.92

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Solution

The fourth proportional to 108,435.18, 149,656.32 and 62,485.92 is: 86,239.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,435.18 : 149,656.32 = 62,485.92 : x
  2. Step 2: Convert to fraction form
    108,435.18/149,656.32 = 62,485.92/x
  3. Step 3: Cross multiply
    108,435.18x = 149,656.32 × 62,485.92
  4. Step 4: Simplify right side
    108,435.18x = 9,351,412,839.01
  5. Step 5: Solve for x
    x = 9,351,412,839.01/108,435.18
  6. Step 6: Final answer
    x = 86,239.66

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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.