Home / 140,918.54-194,475.04-77,259.02

Finding the Fourth Proportional to 140,918.54, 194,475.04 and 77,259.02

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Solution

The fourth proportional to 140,918.54, 194,475.04 and 77,259.02 is: 106,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,918.54 : 194,475.04 = 77,259.02 : x
  2. Step 2: Convert to fraction form
    140,918.54/194,475.04 = 77,259.02/x
  3. Step 3: Cross multiply
    140,918.54x = 194,475.04 × 77,259.02
  4. Step 4: Simplify right side
    140,918.54x = 15,024,951,004.86
  5. Step 5: Solve for x
    x = 15,024,951,004.86/140,918.54
  6. Step 6: Final answer
    x = 106,621.53

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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.