Home / 107,961.02-161,939.10-48,780.80

Finding the Fourth Proportional to 107,961.02, 161,939.10 and 48,780.80

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Solution

The fourth proportional to 107,961.02, 161,939.10 and 48,780.80 is: 73,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,961.02 : 161,939.10 = 48,780.80 : x
  2. Step 2: Convert to fraction form
    107,961.02/161,939.10 = 48,780.80/x
  3. Step 3: Cross multiply
    107,961.02x = 161,939.10 × 48,780.80
  4. Step 4: Simplify right side
    107,961.02x = 7,899,518,849.28
  5. Step 5: Solve for x
    x = 7,899,518,849.28/107,961.02
  6. Step 6: Final answer
    x = 73,170.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.