Home / 148,402.32-204,796.36-81,336.72

Finding the Fourth Proportional to 148,402.32, 204,796.36 and 81,336.72

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Solution

The fourth proportional to 148,402.32, 204,796.36 and 81,336.72 is: 112,245.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,402.32 : 204,796.36 = 81,336.72 : x
  2. Step 2: Convert to fraction form
    148,402.32/204,796.36 = 81,336.72/x
  3. Step 3: Cross multiply
    148,402.32x = 204,796.36 × 81,336.72
  4. Step 4: Simplify right side
    148,402.32x = 16,657,464,190.34
  5. Step 5: Solve for x
    x = 16,657,464,190.34/148,402.32
  6. Step 6: Final answer
    x = 112,245.31

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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.