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Finding the Fourth Proportional to 140,580.80, 194,006.28 and 80,160.32

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Solution

The fourth proportional to 140,580.80, 194,006.28 and 80,160.32 is: 110,623.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,580.80 : 194,006.28 = 80,160.32 : x
  2. Step 2: Convert to fraction form
    140,580.80/194,006.28 = 80,160.32/x
  3. Step 3: Cross multiply
    140,580.80x = 194,006.28 × 80,160.32
  4. Step 4: Simplify right side
    140,580.80x = 15,551,605,486.81
  5. Step 5: Solve for x
    x = 15,551,605,486.81/140,580.80
  6. Step 6: Final answer
    x = 110,623.96

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1.5x scale

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.