Home / 145,583.92-200,905.18-81,922.78

Finding the Fourth Proportional to 145,583.92, 200,905.18 and 81,922.78

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Solution

The fourth proportional to 145,583.92, 200,905.18 and 81,922.78 is: 113,053.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,583.92 : 200,905.18 = 81,922.78 : x
  2. Step 2: Convert to fraction form
    145,583.92/200,905.18 = 81,922.78/x
  3. Step 3: Cross multiply
    145,583.92x = 200,905.18 × 81,922.78
  4. Step 4: Simplify right side
    145,583.92x = 16,458,710,862.00
  5. Step 5: Solve for x
    x = 16,458,710,862.00/145,583.92
  6. Step 6: Final answer
    x = 113,053.08

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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.