Home / 145,546.60-200,840.02-81,883.04

Finding the Fourth Proportional to 145,546.60, 200,840.02 and 81,883.04

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Solution

The fourth proportional to 145,546.60, 200,840.02 and 81,883.04 is: 112,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,546.60 : 200,840.02 = 81,883.04 : x
  2. Step 2: Convert to fraction form
    145,546.60/200,840.02 = 81,883.04/x
  3. Step 3: Cross multiply
    145,546.60x = 200,840.02 × 81,883.04
  4. Step 4: Simplify right side
    145,546.60x = 16,445,391,391.26
  5. Step 5: Solve for x
    x = 16,445,391,391.26/145,546.60
  6. Step 6: Final answer
    x = 112,990.56

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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.