Home / 149,232.61-205,935.87-81,248.41

Finding the Fourth Proportional to 149,232.61, 205,935.87 and 81,248.41

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Solution

The fourth proportional to 149,232.61, 205,935.87 and 81,248.41 is: 112,120.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,232.61 : 205,935.87 = 81,248.41 : x
  2. Step 2: Convert to fraction form
    149,232.61/205,935.87 = 81,248.41/x
  3. Step 3: Cross multiply
    149,232.61x = 205,935.87 × 81,248.41
  4. Step 4: Simplify right side
    149,232.61x = 16,731,961,999.47
  5. Step 5: Solve for x
    x = 16,731,961,999.47/149,232.61
  6. Step 6: Final answer
    x = 112,120.01

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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.