Home / 145,208.06-200,387.42-81,546.11

Finding the Fourth Proportional to 145,208.06, 200,387.42 and 81,546.11

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Solution

The fourth proportional to 145,208.06, 200,387.42 and 81,546.11 is: 112,533.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,208.06 : 200,387.42 = 81,546.11 : x
  2. Step 2: Convert to fraction form
    145,208.06/200,387.42 = 81,546.11/x
  3. Step 3: Cross multiply
    145,208.06x = 200,387.42 × 81,546.11
  4. Step 4: Simplify right side
    145,208.06x = 16,340,813,184.27
  5. Step 5: Solve for x
    x = 16,340,813,184.27/145,208.06
  6. Step 6: Final answer
    x = 112,533.79

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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.