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Finding the Fourth Proportional to 161,728.70, 242,593.05 and 119,738.30

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Solution

The fourth proportional to 161,728.70, 242,593.05 and 119,738.30 is: 179,607.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,728.70 : 242,593.05 = 119,738.30 : x
  2. Step 2: Convert to fraction form
    161,728.70/242,593.05 = 119,738.30/x
  3. Step 3: Cross multiply
    161,728.70x = 242,593.05 × 119,738.30
  4. Step 4: Simplify right side
    161,728.70x = 29,047,679,398.82
  5. Step 5: Solve for x
    x = 29,047,679,398.82/161,728.70
  6. Step 6: Final answer
    x = 179,607.45

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1.5x scale

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.